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BOSTON MARATHON 2025

Christopher Whelan

Bib: 4130•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 35%
Gender (Male)
#0 / 16105
Top 48%
Masters (Masters Men)
#0 / 10463
Top 37%
Division (M40-44)
#0 / 2247
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:17
Rank: #4060
Start → 5K
20:17 | 6:32/mi
10K· 6.21 mi
40:29
Rank: #3894 (+166)
5K → 10K
20:12 | 6:30/mi
15K· 9.32 mi
1:01:01
Rank: #4013 (-119)
10K → 15K
20:32 | 6:37/mi
20K· 12.43 mi
1:22:05
Rank: #4216 (-203)
15K → 20K
21:04 | 6:47/mi
Half· 13.11 mi
1:26:37
Rank: #4227 (-11)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:44:15
Rank: #4903 (-676)
Half → 25K
17:38 | 7:16/mi
30K· 18.64 mi
2:10:07
Rank: #6536 (-1633)
25K → 30K
25:52 | 8:20/mi
20M
2:21:48
Rank: #7008 (-472)
30K → 20M
11:41 | 8:36/mi
21M
2:33:21
Rank: #8147 (-1139)
20M → 21M
11:33 | 11:33/mi
35K· 21.75 mi
2:38:59
Rank: #8138 (+9)
21M → 35K
5:38 | 7:32/mi
23M
2:49:59
Rank: #8537 (-399)
35K → 23M
11:00 | 8:47/mi
24M
2:58:43
Rank: #8925 (-388)
23M → 24M
8:44 | 8:44/mi
40K· 24.85 mi
3:07:12
Rank: #9510 (-585)
24M → 40K
8:29 | 9:55/mi
25.2M
3:11:46
Rank: #10019 (-509)
40K → 25.2M
4:34 | 13:15/mi
Finish· 26.22 mi
3:19:24
Rank: #9962 (+57)
25.2M → Finish
7:38 | 7:29/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:37
Pace6:36 /mi
2nd Half
Distance13.11 mi
Time1:52:47
Pace8:36 /mi
📊Positive Split: 30.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:3520:176:3220:17
6:32
-
10K
6.21 mi10:42:4740:296:3120:12
6:30
-0:02
15K
9.32 mi11:03:191:01:016:3320:32
6:37
+0:07
20K
12.43 mi11:24:231:22:056:3621:04
6:47
+0:10
Half
13.11 mi11:28:551:26:376:364:32
6:39
-0:08
25K
15.53 mi11:46:331:44:156:4317:38
7:16
+0:37
30K
18.64 mi12:12:252:10:076:5925:52
8:20
+1:04
20M
20.00 mi12:24:062:21:487:0511:41
8:36
+0:16
21M
21.00 mi12:35:392:33:217:1811:33
11:33
+2:57
35K
21.75 mi12:41:172:38:597:195:38
7:32
-4:01
23M
23.00 mi12:52:172:49:597:2311:00
8:47
+1:15
24M
24.00 mi13:01:012:58:437:278:44
8:44
-0:03
40K
24.85 mi13:09:303:07:127:328:29
9:55
+1:11
25.2M
25.20 mi13:14:043:11:467:374:34
13:15
+3:20
Finish
26.22 mi13:21:423:19:247:377:38
7:29
-5:46

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

6:30 /mi

Average Pace

7:37 /mi

Slowest Pace

13:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

40:29

20% of race

Time at Steady Pace

1:42:54

52% of race

Time at Slower Pace

56:01

28% of race

Average Pace: 7:36 /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 mi10:22:3520:176:3220:17
6:32
#4060
10K
6.21 mi10:42:4740:296:3120:12
6:30
#3894
15K
9.32 mi11:03:191:01:016:3320:32
6:37
#4013
20K
12.43 mi11:24:231:22:056:3621:04
6:47
#4216
Half
13.11 mi11:28:551:26:376:364:32
6:39
#4227
25K
15.53 mi11:46:331:44:156:4317:38
7:16
#4903
30K
18.64 mi12:12:252:10:076:5925:52
8:20
#6536
20M
20.00 mi12:24:062:21:487:0511:41
8:36
#7008
21M
21.00 mi12:35:392:33:217:1811:33
11:33
#8147
35K
21.75 mi12:41:172:38:597:195:38
7:32
#8138
23M
23.00 mi12:52:172:49:597:2311:00
8:47
#8537
24M
24.00 mi13:01:012:58:437:278:44
8:44
#8925
40K
24.85 mi13:09:303:07:127:328:29
9:55
#9510
25.2M
25.20 mi13:14:043:11:467:374:34
13:15
#10019
Finish
26.22 mi13:21:423:19:247:377:38
7:29
#9962
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi4060383038304320(Top 15%)4058(Top 25%)4058(Top 181%)
10K6.21 mi3.10 mi3894+1663683+1473683+1473752(Top 13%)3541(Top 22%)3541(Top 158%)
15K9.32 mi3.11 mi4013-1193784-1013784-1014320(Top 15%)4058(Top 25%)4058(Top 181%)
20K12.43 mi3.11 mi4216-2033965-1813965-1815126(Top 18%)4728(Top 29%)4728(Top 210%)
Half13.11 mi0.68 mi4227-113975-103975-104877(Top 17%)4537(Top 28%)4537(Top 202%)
25K15.53 mi2.42 mi4903-6764556-5814556-5818150(Top 29%)6855(Top 43%)6855(Top 305%)
30K18.64 mi3.11 mi6536-16335863-13075863-130713642(Top 48%)9436(Top 59%)9436(Top 420%)
20M20.00 mi1.36 mi7008-4726183-3206183-32014382(Top 51%)9625(Top 60%)9625(Top 428%)
21M21.00 mi1.00 mi8147-11396902-7196902-71922692(Top 80%)13287(Top 83%)13287(Top 591%)
35K21.75 mi0.75 mi8138+96875+276875+278829(Top 31%)6760(Top 42%)6760(Top 301%)
23M23.00 mi1.25 mi8537-3997068-1937068-19315004(Top 53%)9619(Top 60%)9619(Top 428%)
24M24.00 mi1.00 mi8925-3887259-1917259-19115902(Top 56%)9977(Top 62%)9977(Top 444%)
40K24.85 mi0.85 mi9510-5857549-2907549-29020165(Top 71%)11867(Top 74%)11867(Top 528%)
25.2M25.20 mi0.35 mi10019-5097796-2477796-24725337(Top 89%)14403(Top 89%)14403(Top 641%)
Finish26.22 mi1.02 mi9962+577735+617735+619102(Top 32%)6496(Top 40%)6496(Top 289%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 15%
×21stories
+97ft-345ft

Overall

4320

Males

4058

M40-44

4058

5K→10K

3.1 - 6.2 mi

Top 13%
×5stories
+79ft-138ft

Overall

3752

Males

3541

M40-44

3541

10K→15K

6.2 - 9.3 mi

Top 15%
×3stories
+67ft-78ft

Overall

4320

Males

4058

M40-44

4058

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

5126

Males

4728

M40-44

4728

20K→Half

12.4 - 13.1 mi

Top 17%
×2stories
+19ft-37ft

Overall

4877

Males

4537

M40-44

4537

Half→25K

13.1 - 15.5 mi

Top 29%
×4stories
+66ft-88ft

Overall

8150

Males

6855

M40-44

6855

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

13642

Males

9436

M40-44

9436

30K→20M

18.6 - 20.0 mi

Top 51%
×5stories
+64ft-50ft

Overall

14382

Males

9625

M40-44

9625

20M→21M

20.0 - 21.0 mi

Top 80%
×8stories
+106ft-24ft

Overall

22692

Males

13287

M40-44

13287

21M→35K

21.0 - 21.8 mi

Top 31%
×7stories
+17ft-86ft

Overall

8829

Males

6760

M40-44

6760

35K→23M

21.8 - 23.0 mi

Top 53%
×5stories
+23ft-63ft

Overall

15004

Males

9619

M40-44

9619

23M→24M

23.0 - 24.0 mi

Top 56%
×6stories
+12ft-82ft

Overall

15902

Males

9977

M40-44

9977

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

20165

Males

11867

M40-44

11867

40K→25.2M

24.9 - 25.2 mi

Top 89%
×1story
+13ft-16ft

Overall

25337

Males

14403

M40-44

14403

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2stories
+22ft-21ft

Overall

9102

Males

6496

M40-44

6496

Passing Analysis

Category:
Athletes Passed
655*
Passed By
6555
Net Change
-5902
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4060
5K → 10K24579+166#4060#3894
10K → 15K54173-119#3894#4013
15K → 20K47250-203#4013#4216
20K → Half1930-11#4216#4227
Half → 25K23699-676#4227#4903
25K → 30K161649-1633#4903#6536
30K → 20M18490-472#6536#7008
20M → 21M21141-1139#7008#8147
21M → 35K6859+9#8147#8138
35K → 23M37436-399#8138#8537
23M → 24M18406-388#8537#8925
24M → 40K10595-585#8925#9510
40K → 25.2M1508-509#9510#10019
25.2M → Finish97*40+57#10019#9962
TOTALS655*6555-5902

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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