Decision time: run marathon or PR half marathon in 2024

I’ve had a good few months of run­ning; real­ly a good year so far. How­ev­er, I’ve been waf­fling on my goals. I haven’t decid­ed whether this is the year for my first marathon. One option is the Mohawk-Hud­son Riv­er Marathon in Octo­ber, the only marathon local to the Cap­i­tal Region. There are full marathon and half marathon options for the Mohawk-Hud­son. On August first the reg­is­tra­tion fee increases.

My minor goal is a total of 2,024km in 2024. I’m a lit­tle bit behind, at 1,119km year to date, but I’m close. 55% of the goal 58% of the way through the year isn’t far off track.

In April I com­plet­ed the Helder­berg to Hud­son Half Marathon in 2:17:29 (631″/km or 1030″/mile), which was a sig­nif­i­cant improve­ment over my per­for­mance in pre­vi­ous half marathons, except for my first two which were when I was in my thir­ties. That inspired me to con­sid­er a half marathon PR as my 2024 goal. It would be quite the feath­er in my cap to beat the time from 2004 twen­ty years later.

Are these achievable goals?

Train­ing for dis­tance and train­ing to increase speed are dif­fer­ent things, and emo­tion­al­ly those two goals feel very dif­fer­ent. I’ve run marathon dis­tance in train­ing, albeit using run/walk inter­vals and the final 3k was all walk­ing. Or hob­bling. Nev­er­the­less I fin­ished that dis­tance in about 5:55. That’s five min­utes before the course cut­off for Mohawk-Hud­son. Based on that it’s not a guar­an­tee that I’d fin­ish under the cut­off, but I’m a stronger run­ner than I was sev­en months ago (and I sure hope I would be over 1100km lat­er.) My odds of fin­ish­ing, even last, are good.

By com­par­i­son, a half marathon faster than my 2004 US Half run would be an aggres­sive goal. I’d need to cut twen­ty min­utes from my half marathon time. My 2004 half marathon time was 1:56:10 (530″/km or 852″/mile) and my 2006 half marathon was 2:06:33 (600″/km or 940″/mile). Can I run bet­ter than a 530″ kilo­me­ter? Sure. On a good day I can do five of them. But 21.1 of them?

The last time I did the Mag­ic Mile test was in May and I did it in 8:17. Accord­ing to Gal­loway’s cal­cu­la­tor that puts me at a 2:10:18 fin­ish in the half marathon. Have I got­ten faster since May? Not real­ly, but com­par­i­son is dif­fi­cult. I don’t usu­al­ly push hard in train­ing the way I would for a race, and tem­per­a­ture is a fac­tor. I prob­a­bly ought to do the Mag­ic Mile again, but that does­n’t account for the heat. The next half marathon I’m sched­uled for (Run 4 the Riv­er) is Labor Day week­end. Tem­per­a­tures will prob­a­bly be not quite as high. Last year Run 4 the Riv­er had a high of 22ºC/72ºF and Mohawk-Hud­son had a high of 18ºF/65ºF, either of which is favor­able com­pared to today’s high of 32ºC/89ºF. Gal­loway rec­om­mends a minute per mile slow­er pace for every ten degrees Fahren­heit over 60ºF. 1I’m trans­lat­ing that to 6 sec­onds per kilo­me­ter for every degree Cel­sius over 16ºC. That’s not exact but it’s a very rough rule of thumb to begin with. I pre­fer round num­bers. Per­son­al­ly I still use Fahren­heit but includ­ing this here in case any­one cares.

So let’s try an exer­cise in extrap­o­la­tion. In June I ran the Good Kar­ma 5k here in Clifton Park in 26:47. That’s 522″/km or 837″/mile on a 19ºC/67ºF. That’s slight­ly faster than Gal­loway’s Mag­ic Mile would have pre­dict­ed with­out account­ing for tem­per­a­ture. Revers­ing Gal­loway’s math leads me to assume a 8:04 Mag­ic Mile and a 601″/km or 941″/mile, or slight­ly slow­er than my time in the 2005 US Half. If I give myself the ben­e­fit of a pace adjust­ment for tem­per­a­ture I should ide­al­ly (opti­misti­cal­ly) be able to do a half marathon at a 543″/km pace on a cool day. I would have to improve my half marathon pace by 14 sec­ond per kilo­me­ter and be at my absolute best on race day.

Bot­tom line: either of these goals would be a big chal­lenge. The faster half marathon would be excit­ing, but so would my first marathon.

Why not both?

Here’s what makes this a choice. Run 4 the Riv­er is in a month. At my lev­el of con­di­tion­ing it would be mirac­u­lous to do it in 1:56:09 or bet­ter. Could I reach that pace by the begin­ning of Octo­ber for Mohawk-Hud­son? That’s almost two months and very like­ly cool­er tem­per­a­tures. It’s still a pret­ty big stretch, but the Mohawk-Hud­son Half Marathon gives me a much bet­ter shot at the ring than Run 4 the River.

If beat­ing my 2004 time in 2024 isn’t real­is­tic but com­plet­ing my first marathon is, I should reg­is­ter for the full marathon. Two months is not a lot of time to train for a marathon, but I’ve been try­ing to stay near to marathon con­di­tion for months. I’d have to ramp up but I’ve got rea­son­able foun­da­tion miles to build on.

Which do I want more?

What I’m more like­ly to be able to accom­plish is only one part of the ques­tion, and it’s not even the most impor­tant. My goals should not just be about what I might be able to do. The oth­er ques­tion is what I want to be able to do, and how these goals align with the kind of run­ning I enjoy.

I do enjoy long dis­tance run­ning, but I don’t know if marathons are my thing. I don’t feel the pull toward the fifty state chal­lenge (and it’s too late for me to run fifty marathons in fifty states before I turn fifty any­how.) I know I enjoy the half, and I enjoy doing longer dis­tances on my own. I want to have done a marathon, but once I’ve done one I don’t know if I’ll want to do more of them. I might just go back to the half being my longest event. 

One approach would be to pick a marathon that I think would be the best one if I only ever do one marathon. I have a men­tal list of can­di­dates there: Big Sur Inter­na­tion­al, Québec City, Mount Desert Island, or for some inter­na­tion­al intrigue the Detroit Free Press Inter­na­tion­al which actu­al­ly cross­es the Detroit Riv­er into Ontario and back. How­ev­er, the fact that there are sev­er­al marathons that I find appeal­ing sug­gests that plan­ning around not want­i­ng to do more isn’t a very strong reason.

Mohawk-Hud­son is a good choice. It’s the one near­est where I live. I can talk about it with oth­er run­ners I meet here, and I get to sup­port the local event. It’s like­ly the one most suit­ed to me right now because it’s most­ly flat but with a cou­ple of hills to give my legs some vari­ety along the way. I’ve run most of the course (not all at once) so it does­n’t have any real sur­pris­es in store. It’s got scenic views along the Mohawk and a sec­tion on city streets through Watervliet. 

Still haven’t answered

A thought exer­cise I did ear­li­er in the year was to ask which of these goals I’d want to accom­plish if I could only do one. Would I rather do a full marathon but nev­er beat my 2004 time in the half marathon, or would I rather get the PR in the half and nev­er do the full? There are two answers to that. 

First the pos­i­tive per­spec­tive: which would give me the big­ger per­son­al feel­ing of vic­to­ry? With­out ques­tion, set­ting a new PR for half marathon would be a per­son­al vic­to­ry. It would show that at 54 I’m in bet­ter shape than I was at 34, and that my decline in fit­ness dur­ing my 40s had been erad­i­cat­ed. It would show that I can come back from set­backs, and over­come adver­si­ty. It would say that back­slid­ing isn’t fail­ure. It would be a real high point in my own per­son­al sto­ry­line. This car­ries a huge emo­tion­al charge. Doing it 20 years after I set the first record would be sym­bol­ic but more­over this stuff isn’t get­ting eas­i­er the old­er I get. Soon­er is prob­a­bly better.

Then the neg­a­tive per­spec­tive: which would I find it eas­i­er to live with if I nev­er did it? As I just men­tioned, get­ting fit ain’t get­ting eas­i­er as I get old­er. Mak­ing gains requires a lot more ded­i­ca­tion and con­sis­ten­cy than it did when I was 34. In 2004 I ran a total of 590km/367 miles and only 386km/240 miles of that was before the US Half in Octo­ber. I ran 819km/508 miles in 2023 and 338km/210 miles by April of 2024 when I ran Helder­berg to Hud­son. I got faster in my ear­ly 30s than in my ear­ly 50s, and I did it with few­er miles. So if I nev­er beat my 2004 PR, that’s real­ly no fail­ure. The vic­to­ry here is to keep going and as long as I do not ever being as good as I was at 34 is… just normal.

Hav­ing nev­er run a marathon (an actu­al race, any­how) I feel like I’ve missed out. I don’t have the full spec­trum of what it means to be a run­ner. There’s no such thing as “the full spec­trum” but the marathon feels like a key part of my run­ning résumé. Say­ing that I pre­fer the half feels emp­ty when I haven’t done the full. If I nev­er do a full marathon race, I will always feel that I missed out on part of the experience. 

That’s just a thought exer­cise. It’s not meant to be the deci­sion, although it is a real part. I could have an acci­dent or an injury that meant that hav­ing accom­plished the one I nev­er get the oth­er. That’s no basis for a deci­sion, or if it is, only a tiny part. The rea­son for the thought exer­cise is just to get a bet­ter sense of what I actu­al­ly hope to achieve and what I want to gain from these challenges. 

I have about twelve hours left to make this deci­sion. Or not. The penal­ty for delay — the dif­fer­ence in the reg­is­tra­tion fee from today to tomor­row — is ten dol­lars. It’s good to have a dead­line to force me to make the call, but it won’t be the end of the world if I push the deci­sion off. Writ­ing all this out here has clar­i­fied the ques­tion for me, but I’m going to hit the pub­lish but­ton before I make the call. I know I haven’t been writ­ing here very much late­ly, but it would be unfair to leave you in sus­pense. I’ll fol­low up with a post once I’ve registered. 

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    I’m trans­lat­ing that to 6 sec­onds per kilo­me­ter for every degree Cel­sius over 16ºC. That’s not exact but it’s a very rough rule of thumb to begin with. I pre­fer round num­bers. Per­son­al­ly I still use Fahren­heit but includ­ing this here in case any­one cares.

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