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BOSTON MARATHON 2025

Thomas Whitcomb

Bib: 1754•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 3%
Gender (Male)
#0 / 16105
Top 4%
Division (M18-39)
#0 / 5642
Top 11%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
18:56
Rank: #1394
Start → 5K
18:56 | 6:06/mi
10K· 6.21 mi
37:37
Rank: #1239 (+155)
5K → 10K
18:41 | 6:01/mi
15K· 9.32 mi
56:21
Rank: #1186 (+53)
10K → 15K
18:44 | 6:02/mi
20K· 12.43 mi
1:15:11
Rank: #1130 (+56)
15K → 20K
18:50 | 6:04/mi
Half· 13.11 mi
1:19:17
Rank: #1129 (+1)
20K → Half
4:06 | 6:01/mi
25K· 15.53 mi
1:33:43
Rank: #1039 (+90)
Half → 25K
14:26 | 5:57/mi
30K· 18.64 mi
1:52:32
Rank: #923 (+116)
25K → 30K
18:49 | 6:03/mi
20M
2:00:52
Rank: #874 (+49)
30K → 20M
8:20 | 6:08/mi
21M
2:07:18
Rank: #836 (+38)
20M → 21M
6:26 | 6:26/mi
35K· 21.75 mi
2:11:47
Rank: #818 (+18)
21M → 35K
4:29 | 6:00/mi
23M
2:19:30
Rank: #789 (+29)
35K → 23M
7:43 | 6:10/mi
24M
2:25:39
Rank: #775 (+14)
23M → 24M
6:09 | 6:09/mi
40K· 24.85 mi
2:31:00
Rank: #774 (+1)
24M → 40K
5:21 | 6:15/mi
25.2M
2:33:21
Rank: #771 (+3)
40K → 25.2M
2:21 | 6:49/mi
Finish· 26.22 mi
2:39:35
Rank: #769 (+2)
25.2M → Finish
6:14 | 6:07/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:19:17
Pace6:03 /mi
2nd Half
Distance13.11 mi
Time1:20:18
Pace6:08 /mi
📊Positive Split: 1.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:19:4818:566:0618:56
6:06
-
10K
6.21 mi10:38:2937:376:0318:41
6:01
-0:05
15K
9.32 mi10:57:1356:216:0318:44
6:02
+0:01
20K
12.43 mi11:16:031:15:116:0318:50
6:04
+0:02
Half
13.11 mi11:20:091:19:176:034:06
6:01
-0:03
25K
15.53 mi11:34:351:33:436:0214:26
5:57
-0:04
30K
18.64 mi11:53:241:52:326:0218:49
6:03
+0:06
20M
20.00 mi12:01:442:00:526:038:20
6:08
+0:05
21M
21.00 mi12:08:102:07:186:046:26
6:26
+0:18
35K
21.75 mi12:12:392:11:476:044:29
6:00
-0:26
23M
23.00 mi12:20:222:19:306:047:43
6:10
+0:10
24M
24.00 mi12:26:312:25:396:046:09
6:09
-0:01
40K
24.85 mi12:31:522:31:006:055:21
6:15
+0:06
25.2M
25.20 mi12:34:132:33:216:052:21
6:49
+0:34
Finish
26.22 mi12:40:272:39:356:056:14
6:07
-0:42

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

5:57 /mi

Average Pace

6:05 /mi

Slowest Pace

6:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:37:14

99% of race

Time at Steady Pace

2:21

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:05 /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 mi10:19:4818:566:0618:56
6:06
#1394
10K
6.21 mi10:38:2937:376:0318:41
6:01
#1239
15K
9.32 mi10:57:1356:216:0318:44
6:02
#1186
20K
12.43 mi11:16:031:15:116:0318:50
6:04
#1130
Half
13.11 mi11:20:091:19:176:034:06
6:01
#1129
25K
15.53 mi11:34:351:33:436:0214:26
5:57
#1039
30K
18.64 mi11:53:241:52:326:0218:49
6:03
#923
20M
20.00 mi12:01:442:00:526:038:20
6:08
#874
21M
21.00 mi12:08:102:07:186:046:26
6:26
#836
35K
21.75 mi12:12:392:11:476:044:29
6:00
#818
23M
23.00 mi12:20:222:19:306:047:43
6:10
#789
24M
24.00 mi12:26:312:25:396:046:09
6:09
#775
40K
24.85 mi12:31:522:31:006:055:21
6:15
#774
25.2M
25.20 mi12:34:132:33:216:052:21
6:49
#771
Finish
26.22 mi12:40:272:39:356:056:14
6:07
#769
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi1394132613261123(Top 4%)1062(Top 7%)1062(Top 19%)
10K6.21 mi3.10 mi1239+1551176+1501176+1501131(Top 4%)1069(Top 7%)1069(Top 19%)
15K9.32 mi3.11 mi1186+531123+531123+531123(Top 4%)1062(Top 7%)1062(Top 19%)
20K12.43 mi3.11 mi1130+561070+531070+531038(Top 4%)977(Top 6%)977(Top 17%)
Half13.11 mi0.68 mi1129+11069+11069+11145(Top 4%)1082(Top 7%)1082(Top 19%)
25K15.53 mi2.42 mi1039+90978+91978+91690(Top 2%)642(Top 4%)642(Top 11%)
30K18.64 mi3.11 mi923+116869+109869+109589(Top 2%)549(Top 3%)549(Top 10%)
20M20.00 mi1.36 mi874+49822+47822+47597(Top 2%)563(Top 3%)563(Top 10%)
21M21.00 mi1.00 mi836+38785+37785+37564(Top 2%)532(Top 3%)532(Top 9%)
35K21.75 mi0.75 mi818+18768+17768+17713(Top 3%)666(Top 4%)666(Top 12%)
23M23.00 mi1.25 mi789+29740+28740+28594(Top 2%)559(Top 3%)559(Top 10%)
24M24.00 mi1.00 mi775+14726+14726+14884(Top 3%)830(Top 5%)830(Top 15%)
40K24.85 mi0.85 mi774+1724+2724+2865(Top 3%)811(Top 5%)811(Top 14%)
25.2M25.20 mi0.35 mi771+3719+5719+5980(Top 3%)898(Top 6%)898(Top 16%)
Finish26.22 mi1.02 mi769+2717+2717+21238(Top 4%)1156(Top 7%)1156(Top 20%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 4%
×21stories
+97ft-345ft

Overall

1123

Males

1062

M18-39

1062

5K→10K

3.1 - 6.2 mi

Top 4%
×5stories
+79ft-138ft

Overall

1131

Males

1069

M18-39

1069

10K→15K

6.2 - 9.3 mi

Top 4%
×3stories
+67ft-78ft

Overall

1123

Males

1062

M18-39

1062

15K→20K

9.3 - 12.4 mi

Top 4%
×5stories
+106ft-86ft

Overall

1038

Males

977

M18-39

977

20K→Half

12.4 - 13.1 mi

Top 4%
×2stories
+19ft-37ft

Overall

1145

Males

1082

M18-39

1082

Half→25K

13.1 - 15.5 mi

Top 2%
×4stories
+66ft-88ft

Overall

690

Males

642

M18-39

642

25K→30K

15.5 - 18.6 mi

Top 2%
×9stories
+181ft-148ft

Overall

589

Males

549

M18-39

549

30K→20M

18.6 - 20.0 mi

Top 2%
×5stories
+64ft-50ft

Overall

597

Males

563

M18-39

563

20M→21M

20.0 - 21.0 mi

Top 2%
×8stories
+106ft-24ft

Overall

564

Males

532

M18-39

532

21M→35K

21.0 - 21.8 mi

Top 3%
×7stories
+17ft-86ft

Overall

713

Males

666

M18-39

666

35K→23M

21.8 - 23.0 mi

Top 2%
×5stories
+23ft-63ft

Overall

594

Males

559

M18-39

559

23M→24M

23.0 - 24.0 mi

Top 3%
×6stories
+12ft-82ft

Overall

884

Males

830

M18-39

830

24M→40K

24.0 - 24.9 mi

Top 3%
×1story
+6ft-20ft

Overall

865

Males

811

M18-39

811

40K→25.2M

24.9 - 25.2 mi

Top 3%
×1story
+13ft-16ft

Overall

980

Males

898

M18-39

898

25.2M→Finish

25.2 - 26.2 mi

Top 4%
×2stories
+22ft-21ft

Overall

1238

Males

1156

M18-39

1156

Passing Analysis

Category:
Athletes Passed
730
Passed By
105
Net Change
+625
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1394
5K → 10K16712+155#1394#1239
10K → 15K7219+53#1239#1186
15K → 20K6812+56#1186#1130
20K → Half76+1#1130#1129
Half → 25K911+90#1129#1039
25K → 30K1215+116#1039#923
30K → 20M534+49#923#874
20M → 21M424+38#874#836
21M → 35K213+18#836#818
35K → 23M323+29#818#789
23M → 24M206+14#789#775
24M → 40K1514+1#775#774
40K → 25.2M74+3#774#771
25.2M → Finish1412+2#771#769
TOTALS730105+625
📊

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