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BOSTON MARATHON 2025

Ian Webb

Bib: 27238•M

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
32:11
Rank: #26428
Start → 5K
10:22/mi
32:11 split
10K· 6.21 mi
1:02:56
Rank: #25716 (+712)
5K → 10K
9:54/mi
30:45 split
15K· 9.32 mi
1:33:28
Rank: #25358 (+358)
10K → 15K
9:50/mi
30:32 split
20K· 12.43 mi
2:05:15
Rank: #25198 (+160)
15K → 20K
10:14/mi
31:47 split
Half· 13.11 mi
2:11:59
Rank: #25157 (+41)
20K → Half
9:52/mi
6:44 split
25K· 15.53 mi
2:36:26
Rank: #24868 (+289)
Half → 25K
10:05/mi
24:27 split
30K· 18.64 mi
3:11:01
Rank: #24755 (+113)
25K → 30K
11:08/mi
34:35 split
20M
3:25:21
Rank: #24617 (+138)
30K → 20M
10:33/mi
14:20 split
21M
3:36:04
Rank: #24431 (+186)
20M → 21M
10:43/mi
10:43 split
35K· 21.75 mi
3:43:45
Rank: #24378 (+53)
21M → 35K
10:16/mi
7:41 split
23M
3:57:17
Rank: #24290 (+88)
35K → 23M
10:49/mi
13:32 split
24M
4:07:50
Rank: #24230 (+60)
23M → 24M
10:33/mi
10:33 split
40K· 24.85 mi
4:16:33
Rank: #24138 (+92)
24M → 40K
10:12/mi
8:43 split
25.2M
4:20:33
Rank: #24112 (+26)
40K → 25.2M
11:36/mi
4:00 split
Finish· 26.22 mi
4:29:35
Rank: #23969 (+143)
25.2M → Finish
8:52/mi
9:02 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:11:59
Pace10:04 /mi
2nd Half
Distance13.11 mi
Time2:17:36
Pace10:30 /mi
📊Positive Split: 4.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:2132:1110:2232:11
10:22
-
10K
6.21 mi12:26:061:02:5610:0830:45
9:54
-0:28
15K
9.32 mi12:56:381:33:2810:0230:32
9:50
-0:04
20K
12.43 mi13:28:252:05:1510:0531:47
10:14
+0:24
Half
13.11 mi13:35:092:11:5910:046:44
9:52
-0:22
25K
15.53 mi13:59:362:36:2610:0424:27
10:05
+0:13
30K
18.64 mi14:34:113:11:0110:1534:35
11:08
+1:03
20M
20.00 mi14:48:313:25:2110:1614:20
10:33
-0:35
21M
21.00 mi14:59:143:36:0410:1710:43
10:43
+0:10
35K
21.75 mi15:06:553:43:4510:177:41
10:16
-0:27
23M
23.00 mi15:20:273:57:1710:1913:32
10:49
+0:33
24M
24.00 mi15:31:004:07:5010:2010:33
10:33
-0:16
40K
24.85 mi15:39:434:16:3310:198:43
10:12
-0:21
25.2M
25.20 mi15:43:434:20:3310:204:00
11:36
+1:24
Finish
26.22 mi15:52:454:29:3510:179:02
8:52
-2:44

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

8:52 /mi

Average Pace

10:17 /mi

Slowest Pace

11:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:17:03

29% of race

Time at Steady Pace

2:09:42

48% of race

Time at Slower Pace

1:02:50

23% of race

Average Pace: 10:17 /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 mi11:55:2132:1110:2232:11
10:22
#26428
10K
6.21 mi12:26:061:02:5610:0830:45
9:54
#25716
15K
9.32 mi12:56:381:33:2810:0230:32
9:50
#25358
20K
12.43 mi13:28:252:05:1510:0531:47
10:14
#25198
Half
13.11 mi13:35:092:11:5910:046:44
9:52
#25157
25K
15.53 mi13:59:362:36:2610:0424:27
10:05
#24868
30K
18.64 mi14:34:113:11:0110:1534:35
11:08
#24755
20M
20.00 mi14:48:313:25:2110:1614:20
10:33
#24617
21M
21.00 mi14:59:143:36:0410:1710:43
10:43
#24431
35K
21.75 mi15:06:553:43:4510:177:41
10:16
#24378
23M
23.00 mi15:20:273:57:1710:1913:32
10:49
#24290
24M
24.00 mi15:31:004:07:5010:2010:33
10:33
#24230
40K
24.85 mi15:39:434:16:3310:198:43
10:12
#24138
25.2M
25.20 mi15:43:434:20:3310:204:00
11:36
#24112
Finish
26.22 mi15:52:454:29:3510:179:02
8:52
#23969
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi26428153661536624608(Top 87%)14533(Top 90%)14533(Top 258%)
10K6.21 mi3.10 mi25716+71215042+32415042+32425083(Top 88%)14739(Top 92%)14739(Top 261%)
15K9.32 mi3.11 mi25358+35814875+16714875+16724608(Top 87%)14533(Top 90%)14533(Top 258%)
20K12.43 mi3.11 mi25198+16014789+8614789+8624703(Top 87%)14531(Top 90%)14531(Top 258%)
Half13.11 mi0.68 mi25157+4114769+2014769+2024531(Top 86%)14449(Top 90%)14449(Top 256%)
25K15.53 mi2.42 mi24868+28914618+15114618+15123464(Top 83%)13942(Top 87%)13942(Top 247%)
30K18.64 mi3.11 mi24755+11314545+7314545+7324254(Top 85%)14194(Top 88%)14194(Top 252%)
20M20.00 mi1.36 mi24617+13814475+7014475+7022567(Top 79%)13319(Top 83%)13319(Top 236%)
21M21.00 mi1.00 mi24431+18614375+10014375+10020645(Top 73%)12329(Top 77%)12329(Top 219%)
35K21.75 mi0.75 mi24378+5314338+3714338+3722612(Top 80%)13217(Top 82%)13217(Top 234%)
23M23.00 mi1.25 mi24290+8814283+5514283+5522763(Top 80%)13229(Top 82%)13229(Top 234%)
24M24.00 mi1.00 mi24230+6014243+4014243+4022955(Top 81%)13287(Top 83%)13287(Top 236%)
40K24.85 mi0.85 mi24138+9214176+6714176+6721064(Top 74%)12317(Top 76%)12317(Top 218%)
25.2M25.20 mi0.35 mi24112+2614156+2014156+2022299(Top 79%)12949(Top 80%)12949(Top 230%)
Finish26.22 mi1.02 mi23969+14314082+7414082+7418365(Top 65%)11055(Top 69%)11055(Top 196%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 87%
×21story building
+97ft-345ft

Overall

24608

Males

14533

M18-39

14533

5K→10K

3.1 - 6.2 mi

Top 88%
×5story building
+79ft-138ft

Overall

25083

Males

14739

M18-39

14739

10K→15K

6.2 - 9.3 mi

Top 87%
×3story building
+67ft-78ft

Overall

24608

Males

14533

M18-39

14533

15K→20K

9.3 - 12.4 mi

Top 87%
×5story building
+106ft-86ft

Overall

24703

Males

14531

M18-39

14531

20K→Half

12.4 - 13.1 mi

Top 86%
×2story building
+19ft-37ft

Overall

24531

Males

14449

M18-39

14449

Half→25K

13.1 - 15.5 mi

Top 83%
×4story building
+66ft-88ft

Overall

23464

Males

13942

M18-39

13942

25K→30K

15.5 - 18.6 mi

Top 85%
×9story building
+181ft-148ft

Overall

24254

Males

14194

M18-39

14194

30K→20M

18.6 - 20.0 mi

Top 79%
×5story building
+64ft-50ft

Overall

22567

Males

13319

M18-39

13319

20M→21M

20.0 - 21.0 mi

Top 73%
×8story building
+106ft-24ft

Overall

20645

Males

12329

M18-39

12329

21M→35K

21.0 - 21.8 mi

Top 80%
×7story building
+17ft-86ft

Overall

22612

Males

13217

M18-39

13217

35K→23M

21.8 - 23.0 mi

Top 80%
×5story building
+23ft-63ft

Overall

22763

Males

13229

M18-39

13229

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

22955

Males

13287

M18-39

13287

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

21064

Males

12317

M18-39

12317

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22299

Males

12949

M18-39

12949

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2story building
+22ft-21ft

Overall

18365

Males

11055

M18-39

11055

Passing Analysis

Category:
Athletes Passed
2685
Passed By
226
Net Change
+2459
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#26428
5K → 10K7186+712#26428#25716
10K → 15K37416+358#25716#25358
15K → 20K21656+160#25358#25198
20K → Half476+41#25198#25157
Half → 25K2945+289#25157#24868
25K → 30K18471+113#24868#24755
30K → 20M1435+138#24755#24617
20M → 21M1860+186#24617#24431
21M → 35K6714+53#24431#24378
35K → 23M10517+88#24378#24290
23M → 24M7717+60#24290#24230
24M → 40K964+92#24230#24138
40K → 25.2M348+26#24138#24112
25.2M → Finish1441+143#24112#23969
TOTALS2685226+2459
📊

Passing Visuals

Category:
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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