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BOSTON MARATHON 2025

Bret Clark

Bib: 8805•M

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 12%
Gender (Male)
#0 / 16105
Top 21%
Masters (Masters Men)
#0 / 10463
Top 8%
Division (M40-44)
#0 / 2247
Top 22%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:59
Rank: #5937
Start → 5K
20:59 | 6:45/mi
10K· 6.21 mi
41:22
Rank: #4982 (+955)
5K → 10K
20:23 | 6:34/mi
15K· 9.32 mi
1:01:49
Rank: #4644 (+338)
10K → 15K
20:27 | 6:35/mi
20K· 12.43 mi
1:22:14
Rank: #4314 (+330)
15K → 20K
20:25 | 6:34/mi
Half· 13.11 mi
1:26:42
Rank: #4280 (+34)
20K → Half
4:28 | 6:33/mi
25K· 15.53 mi
1:42:39
Rank: #4053 (+227)
Half → 25K
15:57 | 6:35/mi
30K· 18.64 mi
2:03:35
Rank: #3825 (+228)
25K → 30K
20:56 | 6:44/mi
20M
2:12:55
Rank: #3740 (+85)
30K → 20M
9:20 | 6:52/mi
21M
2:20:01
Rank: #3656 (+84)
20M → 21M
7:06 | 7:06/mi
35K· 21.75 mi
2:25:12
Rank: #3677 (-21)
21M → 35K
5:11 | 6:56/mi
23M
2:34:01
Rank: #3649 (+28)
35K → 23M
8:49 | 7:03/mi
24M
2:40:50
Rank: #3622 (+27)
23M → 24M
6:49 | 6:49/mi
40K· 24.85 mi
2:46:50
Rank: #3609 (+13)
24M → 40K
6:00 | 7:01/mi
25.2M
2:49:24
Rank: #3576 (+33)
40K → 25.2M
2:34 | 7:27/mi
Finish· 26.22 mi
2:56:12
Rank: #3542 (+34)
25.2M → Finish
6:48 | 6:40/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:42
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:29:30
Pace6:50 /mi
📊Positive Split: 3.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:46:1920:596:4520:59
6:45
-
10K
6.21 mi11:06:4241:226:3920:23
6:34
-0:11
15K
9.32 mi11:27:091:01:496:3820:27
6:35
+0:01
20K
12.43 mi11:47:341:22:146:3720:25
6:34
-0:01
Half
13.11 mi11:52:021:26:426:374:28
6:33
-0:01
25K
15.53 mi12:07:591:42:396:3615:57
6:35
+0:02
30K
18.64 mi12:28:552:03:356:3820:56
6:44
+0:09
20M
20.00 mi12:38:152:12:556:399:20
6:52
+0:08
21M
21.00 mi12:45:212:20:016:407:06
7:06
+0:14
35K
21.75 mi12:50:322:25:126:415:11
6:56
-0:10
23M
23.00 mi12:59:212:34:016:428:49
7:03
+0:07
24M
24.00 mi13:06:102:40:506:426:49
6:49
-0:14
40K
24.85 mi13:12:102:46:506:436:00
7:01
+0:12
25.2M
25.20 mi13:14:442:49:246:432:34
7:27
+0:26
Finish
26.22 mi13:21:322:56:126:446:48
6:40
-0:47

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

6:33 /mi

Average Pace

6:44 /mi

Slowest Pace

7:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:53:38

99% of race

Time at Steady Pace

2:34

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:43 /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 mi10:46:1920:596:4520:59
6:45
#5937
10K
6.21 mi11:06:4241:226:3920:23
6:34
#4982
15K
9.32 mi11:27:091:01:496:3820:27
6:35
#4644
20K
12.43 mi11:47:341:22:146:3720:25
6:34
#4314
Half
13.11 mi11:52:021:26:426:374:28
6:33
#4280
25K
15.53 mi12:07:591:42:396:3615:57
6:35
#4053
30K
18.64 mi12:28:552:03:356:3820:56
6:44
#3825
20M
20.00 mi12:38:152:12:556:399:20
6:52
#3740
21M
21.00 mi12:45:212:20:016:407:06
7:06
#3656
35K
21.75 mi12:50:322:25:126:415:11
6:56
#3677
23M
23.00 mi12:59:212:34:016:428:49
7:03
#3649
24M
24.00 mi13:06:102:40:506:426:49
6:49
#3622
40K
24.85 mi13:12:102:46:506:436:00
7:01
#3609
25.2M
25.20 mi13:14:442:49:246:432:34
7:27
#3576
Finish
26.22 mi13:21:322:56:126:446:48
6:40
#3542
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi5937546354634093(Top 14%)3852(Top 24%)3852(Top 171%)
10K6.21 mi3.10 mi4982+9554646+8174646+8174159(Top 15%)3912(Top 24%)3912(Top 174%)
15K9.32 mi3.11 mi4644+3384348+2984348+2984093(Top 14%)3852(Top 24%)3852(Top 171%)
20K12.43 mi3.11 mi4314+3304054+2944054+2943542(Top 12%)3352(Top 21%)3352(Top 149%)
Half13.11 mi0.68 mi4280+344021+334021+334031(Top 14%)3795(Top 24%)3795(Top 169%)
25K15.53 mi2.42 mi4053+2273810+2113810+2113344(Top 12%)3163(Top 20%)3163(Top 141%)
30K18.64 mi3.11 mi3825+2283606+2043606+2043081(Top 11%)2894(Top 18%)2894(Top 129%)
20M20.00 mi1.36 mi3740+853521+853521+853335(Top 12%)3086(Top 19%)3086(Top 137%)
21M21.00 mi1.00 mi3656+843441+803441+802701(Top 10%)2511(Top 16%)2511(Top 112%)
35K21.75 mi0.75 mi3677-213457-163457-164914(Top 17%)4326(Top 27%)4326(Top 193%)
23M23.00 mi1.25 mi3649+283427+303427+304022(Top 14%)3592(Top 22%)3592(Top 160%)
24M24.00 mi1.00 mi3622+273394+333394+333618(Top 13%)3237(Top 20%)3237(Top 144%)
40K24.85 mi0.85 mi3609+133370+243370+244025(Top 14%)3513(Top 22%)3513(Top 156%)
25.2M25.20 mi0.35 mi3576+333340+303340+303186(Top 11%)2827(Top 18%)2827(Top 126%)
Finish26.22 mi1.02 mi3542+343304+363304+363741(Top 13%)3246(Top 20%)3246(Top 144%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

4093

Males

3852

M40-44

3852

5K→10K

3.1 - 6.2 mi

Top 15%
×5stories
+79ft-138ft

Overall

4159

Males

3912

M40-44

3912

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

4093

Males

3852

M40-44

3852

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3542

Males

3352

M40-44

3352

20K→Half

12.4 - 13.1 mi

Top 14%
×2stories
+19ft-37ft

Overall

4031

Males

3795

M40-44

3795

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3344

Males

3163

M40-44

3163

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3081

Males

2894

M40-44

2894

30K→20M

18.6 - 20.0 mi

Top 12%
×5stories
+64ft-50ft

Overall

3335

Males

3086

M40-44

3086

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2701

Males

2511

M40-44

2511

21M→35K

21.0 - 21.8 mi

Top 17%
×7stories
+17ft-86ft

Overall

4914

Males

4326

M40-44

4326

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

4022

Males

3592

M40-44

3592

23M→24M

23.0 - 24.0 mi

Top 13%
×6stories
+12ft-82ft

Overall

3618

Males

3237

M40-44

3237

24M→40K

24.0 - 24.9 mi

Top 14%
×1story
+6ft-20ft

Overall

4025

Males

3513

M40-44

3513

40K→25.2M

24.9 - 25.2 mi

Top 11%
×1story
+13ft-16ft

Overall

3186

Males

2827

M40-44

2827

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2stories
+22ft-21ft

Overall

3741

Males

3246

M40-44

3246

Passing Analysis

Category:
Athletes Passed
2700
Passed By
305
Net Change
+2395
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5937
5K → 10K96813+955#5937#4982
10K → 15K34810+338#4982#4644
15K → 20K3355+330#4644#4314
20K → Half417+34#4314#4280
Half → 25K2369+227#4280#4053
25K → 30K24820+228#4053#3825
30K → 20M10823+85#3825#3740
20M → 21M928+84#3740#3656
21M → 35K2748-21#3656#3677
35K → 23M6941+28#3677#3649
23M → 24M6437+27#3649#3622
24M → 40K5340+13#3622#3609
40K → 25.2M4613+33#3609#3576
25.2M → Finish6531+34#3576#3542
TOTALS2700305+2395
📊

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