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BOSTON MARATHON 2025

Thomas Briggs

Bib: 932•M

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 1%
Gender (Male)
#0 / 16105
Top 2%
Division (M18-39)
#0 / 5642
Top 5%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
17:24
Rank: #303
Start → 5K
17:24 | 5:36/mi
10K· 6.21 mi
34:53
Rank: #310 (-7)
5K → 10K
17:29 | 5:38/mi
15K· 9.32 mi
52:25
Rank: #295 (+15)
10K → 15K
17:32 | 5:39/mi
20K· 12.43 mi
1:09:59
Rank: #283 (+12)
15K → 20K
17:34 | 5:39/mi
Half· 13.11 mi
1:13:48
Rank: #283
20K → Half
3:49 | 5:36/mi
25K· 15.53 mi
1:27:39
Rank: #286 (-3)
Half → 25K
13:51 | 5:43/mi
30K· 18.64 mi
1:46:06
Rank: #295 (-9)
25K → 30K
18:27 | 5:56/mi
20M
1:54:17
Rank: #291 (+4)
30K → 20M
8:11 | 6:01/mi
21M
2:00:42
Rank: #296 (-5)
20M → 21M
6:25 | 6:25/mi
35K· 21.75 mi
2:05:05
Rank: #295 (+1)
21M → 35K
4:23 | 5:52/mi
23M
2:12:43
Rank: #284 (+11)
35K → 23M
7:38 | 6:06/mi
24M
2:19:04
Rank: #298 (-14)
23M → 24M
6:21 | 6:21/mi
40K· 24.85 mi
2:24:39
Rank: #323 (-25)
24M → 40K
5:35 | 6:32/mi
25.2M
2:27:01
Rank: #327 (-4)
40K → 25.2M
2:22 | 6:52/mi
Finish· 26.22 mi
2:33:15
Rank: #331 (-4)
25.2M → Finish
6:14 | 6:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:13:48
Pace5:38 /mi
2nd Half
Distance13.11 mi
Time1:19:27
Pace6:04 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:17:3517:245:3617:24
5:36
-
10K
6.21 mi10:35:0434:535:3717:29
5:38
+0:02
15K
9.32 mi10:52:3652:255:3717:32
5:39
+0:01
20K
12.43 mi11:10:101:09:595:3817:34
5:39
0:00
Half
13.11 mi11:13:591:13:485:383:49
5:36
-0:03
25K
15.53 mi11:27:501:27:395:3913:51
5:43
+0:07
30K
18.64 mi11:46:171:46:065:4218:27
5:56
+0:13
20M
20.00 mi11:54:281:54:175:438:11
6:01
+0:05
21M
21.00 mi12:00:532:00:425:456:25
6:25
+0:24
35K
21.75 mi12:05:162:05:055:454:23
5:52
-0:33
23M
23.00 mi12:12:542:12:435:467:38
6:06
+0:14
24M
24.00 mi12:19:152:19:045:486:21
6:21
+0:15
40K
24.85 mi12:24:502:24:395:495:35
6:32
+0:11
25.2M
25.20 mi12:27:122:27:015:502:22
6:52
+0:20
Finish
26.22 mi12:33:262:33:155:516:14
6:07
-0:45

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

5:36 /mi

Average Pace

5:51 /mi

Slowest Pace

6:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:27:39

57% of race

Time at Steady Pace

44:53

29% of race

Time at Slower Pace

20:43

14% of race

Average Pace: 5:51 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi10:17:3517:245:3617:24
5:36
#303
10K
6.21 mi10:35:0434:535:3717:29
5:38
#310
15K
9.32 mi10:52:3652:255:3717:32
5:39
#295
20K
12.43 mi11:10:101:09:595:3817:34
5:39
#283
Half
13.11 mi11:13:591:13:485:383:49
5:36
#283
25K
15.53 mi11:27:501:27:395:3913:51
5:43
#286
30K
18.64 mi11:46:171:46:065:4218:27
5:56
#295
20M
20.00 mi11:54:281:54:175:438:11
6:01
#291
21M
21.00 mi12:00:532:00:425:456:25
6:25
#296
35K
21.75 mi12:05:162:05:055:454:23
5:52
#295
23M
23.00 mi12:12:542:12:435:467:38
6:06
#284
24M
24.00 mi12:19:152:19:045:486:21
6:21
#298
40K
24.85 mi12:24:502:24:395:495:35
6:32
#323
25.2M
25.20 mi12:27:122:27:015:502:22
6:52
#327
Finish
26.22 mi12:33:262:33:155:516:14
6:07
#331
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi303274274298(Top 1%)270(Top 2%)270(Top 5%)
10K6.21 mi3.10 mi310-7281-7281-7328(Top 1%)299(Top 2%)299(Top 5%)
15K9.32 mi3.11 mi295+15266+15266+15298(Top 1%)270(Top 2%)270(Top 5%)
20K12.43 mi3.11 mi283+12254+12254+12260(Top 0.9%)234(Top 1%)234(Top 4%)
Half13.11 mi0.68 mi283255-1255-1296(Top 1%)271(Top 2%)271(Top 5%)
25K15.53 mi2.42 mi286-3258-3258-3301(Top 1%)275(Top 2%)275(Top 5%)
30K18.64 mi3.11 mi295-9268-10268-10409(Top 1%)378(Top 2%)378(Top 7%)
20M20.00 mi1.36 mi291+4264+4264+4410(Top 1%)383(Top 2%)383(Top 7%)
21M21.00 mi1.00 mi296-5270-6270-6531(Top 2%)501(Top 3%)501(Top 9%)
35K21.75 mi0.75 mi295+1269+1269+1450(Top 2%)418(Top 3%)418(Top 7%)
23M23.00 mi1.25 mi284+11260+9260+9477(Top 2%)449(Top 3%)449(Top 8%)
24M24.00 mi1.00 mi298-14273-13273-131443(Top 5%)1347(Top 8%)1347(Top 24%)
40K24.85 mi0.85 mi323-25296-23296-231683(Top 6%)1553(Top 10%)1553(Top 28%)
25.2M25.20 mi0.35 mi327-4300-4300-41077(Top 4%)987(Top 6%)987(Top 17%)
Finish26.22 mi1.02 mi331-4304-4304-41225(Top 4%)1143(Top 7%)1143(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 1%
×21stories
+97ft-345ft

Overall

298

Males

270

M18-39

270

5K→10K

3.1 - 6.2 mi

Top 1%
×5stories
+79ft-138ft

Overall

328

Males

299

M18-39

299

10K→15K

6.2 - 9.3 mi

Top 1%
×3stories
+67ft-78ft

Overall

298

Males

270

M18-39

270

15K→20K

9.3 - 12.4 mi

Top 0.9%
×5stories
+106ft-86ft

Overall

260

Males

234

M18-39

234

20K→Half

12.4 - 13.1 mi

Top 1%
×2stories
+19ft-37ft

Overall

296

Males

271

M18-39

271

Half→25K

13.1 - 15.5 mi

Top 1%
×4stories
+66ft-88ft

Overall

301

Males

275

M18-39

275

25K→30K

15.5 - 18.6 mi

Top 1%
×9stories
+181ft-148ft

Overall

409

Males

378

M18-39

378

30K→20M

18.6 - 20.0 mi

Top 1%
×5stories
+64ft-50ft

Overall

410

Males

383

M18-39

383

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

531

Males

501

M18-39

501

21M→35K

21.0 - 21.8 mi

Top 2%
×7stories
+17ft-86ft

Overall

450

Males

418

M18-39

418

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

477

Males

449

M18-39

449

23M→24M

23.0 - 24.0 mi

Top 5%
×6stories
+12ft-82ft

Overall

1443

Males

1347

M18-39

1347

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1683

Males

1553

M18-39

1553

40K→25.2M

24.9 - 25.2 mi

Top 4%
×1story
+13ft-16ft

Overall

1077

Males

987

M18-39

987

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1225

Males

1143

M18-39

1143

Passing Analysis

Category:
Athletes Passed
124
Passed By
152
Net Change
-28
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#303
5K → 10K1219-7#303#310
10K → 15K227+15#310#295
15K → 20K164+12#295#283
20K → Half220#283#283
Half → 25K912-3#283#286
25K → 30K1524-9#286#295
30K → 20M95+4#295#291
20M → 21M611-5#291#296
21M → 35K54+1#296#295
35K → 23M176+11#295#284
23M → 24M317-14#284#298
24M → 40K126-25#298#323
40K → 25.2M37-4#323#327
25.2M → Finish48-4#327#331
TOTALS124152-28
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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