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BOSTON MARATHON 2025

Dain Shirmer

Bib: 3986•M

NH

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 14%
Gender (Male)
#0 / 16105
Top 22%
Division (M18-39)
#0 / 5642
Top 47%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K· 3.11 mi
19:56
Rank: #3228
Start → 5K
19:56 | 6:25/mi
10K· 6.21 mi
40:07
Rank: #3447 (-219)
5K → 10K
20:11 | 6:30/mi
15K· 9.32 mi
1:00:18
Rank: #3456 (-9)
10K → 15K
20:11 | 6:30/mi
20K· 12.43 mi
1:20:28
Rank: #3325 (+131)
15K → 20K
20:10 | 6:29/mi
Half· 13.11 mi
1:24:55
Rank: #3350 (-25)
20K → Half
4:27 | 6:31/mi
25K· 15.53 mi
1:40:43
Rank: #3276 (+74)
Half → 25K
15:48 | 6:31/mi
30K· 18.64 mi
2:02:18
Rank: #3394 (-118)
25K → 30K
21:35 | 6:57/mi
20M
2:12:05
Rank: #3516 (-122)
30K → 20M
9:47 | 7:12/mi
21M
2:19:39
Rank: #3553 (-37)
20M → 21M
7:34 | 7:34/mi
35K· 21.75 mi
2:25:01
Rank: #3621 (-68)
21M → 35K
5:22 | 7:10/mi
23M
2:34:04
Rank: #3672 (-51)
35K → 23M
9:03 | 7:14/mi
24M
2:41:14
Rank: #3739 (-67)
23M → 24M
7:10 | 7:10/mi
40K· 24.85 mi
2:47:34
Rank: #3815 (-76)
24M → 40K
6:20 | 7:24/mi
25.2M
2:50:22
Rank: #3846 (-31)
40K → 25.2M
2:48 | 8:07/mi
Finish· 26.22 mi
2:57:33
Rank: #3908 (-62)
25.2M → Finish
7:11 | 7:03/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:55
Pace6:29 /mi
2nd Half
Distance13.11 mi
Time1:32:38
Pace7:04 /mi
📊Positive Split: 9.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:5019:566:2519:56
6:25
-
10K
6.21 mi10:43:0140:076:2720:11
6:30
+0:05
15K
9.32 mi11:03:121:00:186:2820:11
6:30
0:00
20K
12.43 mi11:23:221:20:286:2820:10
6:29
-0:01
Half
13.11 mi11:27:491:24:556:294:27
6:31
+0:02
25K
15.53 mi11:43:371:40:436:2915:48
6:31
0:00
30K
18.64 mi12:05:122:02:186:3421:35
6:57
+0:26
20M
20.00 mi12:14:592:12:056:369:47
7:12
+0:15
21M
21.00 mi12:22:332:19:396:397:34
7:34
+0:22
35K
21.75 mi12:27:552:25:016:405:22
7:10
-0:24
23M
23.00 mi12:36:582:34:046:429:03
7:14
+0:04
24M
24.00 mi12:44:082:41:146:437:10
7:10
-0:04
40K
24.85 mi12:50:282:47:346:456:20
7:24
+0:14
25.2M
25.20 mi12:53:162:50:226:462:48
8:07
+0:43
Finish
26.22 mi13:00:272:57:336:477:11
7:03
-1:04

Checkpoints & Pacing

📈Pace Line

Pace Progression

Track your pace changes throughout the race. Dot colors mark your quickest to easiest segments, relative to your own pace.

Fastest Pace

6:25 /mi

Average Pace

6:47 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:40:43

57% of race

Time at Steady Pace

1:00:08

34% of race

Time at Slower Pace

16:42

9% of race

Average Pace: 6:46 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

🎨Heatmap

Pace Heatmap

Where you sped up and eased off relative to your own pace across the race. Colors are relative to your own range, not to other runners.

Loading...
0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Click or hover over segments to see details

✨Sparklines

Checkpoint Splits with Pace Trends

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:22:5019:566:2519:56
6:25
#3228
10K
6.21 mi10:43:0140:076:2720:11
6:30
#3447
15K
9.32 mi11:03:121:00:186:2820:11
6:30
#3456
20K
12.43 mi11:23:221:20:286:2820:10
6:29
#3325
Half
13.11 mi11:27:491:24:556:294:27
6:31
#3350
25K
15.53 mi11:43:371:40:436:2915:48
6:31
#3276
30K
18.64 mi12:05:122:02:186:3421:35
6:57
#3394
20M
20.00 mi12:14:592:12:056:369:47
7:12
#3516
21M
21.00 mi12:22:332:19:396:397:34
7:34
#3553
35K
21.75 mi12:27:552:25:016:405:22
7:10
#3621
23M
23.00 mi12:36:582:34:046:429:03
7:14
#3672
24M
24.00 mi12:44:082:41:146:437:10
7:10
#3739
40K
24.85 mi12:50:282:47:346:456:20
7:24
#3815
25.2M
25.20 mi12:53:162:50:226:462:48
8:07
#3846
Finish
26.22 mi13:00:272:57:336:477:11
7:03
#3908
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3228306730673542(Top 12%)3349(Top 21%)3349(Top 59%)
10K6.21 mi3.10 mi3447-2193273-2063273-2063693(Top 13%)3485(Top 22%)3485(Top 62%)
15K9.32 mi3.11 mi3456-93281-83281-83542(Top 12%)3349(Top 21%)3349(Top 59%)
20K12.43 mi3.11 mi3325+1313163+1183163+1183070(Top 11%)2916(Top 18%)2916(Top 52%)
Half13.11 mi0.68 mi3350-253181-183181-183802(Top 13%)3582(Top 22%)3582(Top 63%)
25K15.53 mi2.42 mi3276+743117+643117+642974(Top 10%)2828(Top 18%)2828(Top 50%)
30K18.64 mi3.11 mi3394-1183211-943211-944365(Top 15%)3996(Top 25%)3996(Top 71%)
20M20.00 mi1.36 mi3516-1223320-1093320-1095169(Top 18%)4599(Top 29%)4599(Top 82%)
21M21.00 mi1.00 mi3553-373353-333353-334916(Top 17%)4304(Top 27%)4304(Top 76%)
35K21.75 mi0.75 mi3621-683404-513404-516372(Top 22%)5286(Top 33%)5286(Top 94%)
23M23.00 mi1.25 mi3672-513445-413445-415012(Top 18%)4319(Top 27%)4319(Top 77%)
24M24.00 mi1.00 mi3739-673492-473492-475571(Top 20%)4634(Top 29%)4634(Top 82%)
40K24.85 mi0.85 mi3815-763549-573549-576193(Top 22%)4953(Top 31%)4953(Top 88%)
25.2M25.20 mi0.35 mi3846-313571-223571-226470(Top 23%)4999(Top 31%)4999(Top 89%)
Finish26.22 mi1.02 mi3908-623616-453616-456020(Top 21%)4728(Top 29%)4728(Top 84%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3542

Males

3349

M18-39

3349

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3693

Males

3485

M18-39

3485

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3542

Males

3349

M18-39

3349

15K→20K

9.3 - 12.4 mi

Top 11%
×5stories
+106ft-86ft

Overall

3070

Males

2916

M18-39

2916

20K→Half

12.4 - 13.1 mi

Top 13%
×2stories
+19ft-37ft

Overall

3802

Males

3582

M18-39

3582

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2974

Males

2828

M18-39

2828

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4365

Males

3996

M18-39

3996

30K→20M

18.6 - 20.0 mi

Top 18%
×5stories
+64ft-50ft

Overall

5169

Males

4599

M18-39

4599

20M→21M

20.0 - 21.0 mi

Top 17%
×8stories
+106ft-24ft

Overall

4916

Males

4304

M18-39

4304

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

6372

Males

5286

M18-39

5286

35K→23M

21.8 - 23.0 mi

Top 18%
×5stories
+23ft-63ft

Overall

5012

Males

4319

M18-39

4319

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

5571

Males

4634

M18-39

4634

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

6193

Males

4953

M18-39

4953

40K→25.2M

24.9 - 25.2 mi

Top 23%
×1story
+13ft-16ft

Overall

6470

Males

4999

M18-39

4999

25.2M→Finish

25.2 - 26.2 mi

Top 21%
×2stories
+22ft-21ft

Overall

6020

Males

4728

M18-39

4728

Passing Analysis

Category:
Athletes Passed
757
Passed By
1437
Net Change
-680
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3228
5K → 10K54273-219#3228#3447
10K → 15K98107-9#3447#3456
15K → 20K16736+131#3456#3325
20K → Half1035-25#3325#3350
Half → 25K10632+74#3350#3276
25K → 30K80198-118#3276#3394
30K → 20M34156-122#3394#3516
20M → 21M3067-37#3516#3553
21M → 35K2088-68#3553#3621
35K → 23M52103-51#3621#3672
23M → 24M3299-67#3672#3739
24M → 40K28104-76#3739#3815
40K → 25.2M839-31#3815#3846
25.2M → Finish38100-62#3846#3908
TOTALS7571437-680
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing