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BOSTON MARATHON 2025

Carson Clowes

Bib: 4338•M

CA

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 10%
Gender (Male)
#0 / 16105
Top 16%
Division (M18-39)
#0 / 5642
Top 37%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:58
Rank: #3292
Start → 5K
19:58 | 6:26/mi
10K· 6.21 mi
39:57
Rank: #3260 (+32)
5K → 10K
19:59 | 6:26/mi
15K· 9.32 mi
1:00:04
Rank: #3282 (-22)
10K → 15K
20:07 | 6:28/mi
20K· 12.43 mi
1:20:26
Rank: #3304 (-22)
15K → 20K
20:22 | 6:33/mi
Half· 13.11 mi
1:24:49
Rank: #3299 (+5)
20K → Half
4:23 | 6:25/mi
25K· 15.53 mi
1:40:52
Rank: #3325 (-26)
Half → 25K
16:03 | 6:37/mi
30K· 18.64 mi
2:01:57
Rank: #3275 (+50)
25K → 30K
21:05 | 6:47/mi
20M
2:11:13
Rank: #3210 (+65)
30K → 20M
9:16 | 6:49/mi
21M
2:18:23
Rank: #3166 (+44)
20M → 21M
7:10 | 7:10/mi
35K· 21.75 mi
2:23:13
Rank: #3099 (+67)
21M → 35K
4:50 | 6:28/mi
23M
2:31:37
Rank: #2994 (+105)
35K → 23M
8:24 | 6:43/mi
24M
2:38:10
Rank: #2937 (+57)
23M → 24M
6:33 | 6:33/mi
40K· 24.85 mi
2:43:46
Rank: #2850 (+87)
24M → 40K
5:36 | 6:33/mi
25.2M
2:46:16
Rank: #2832 (+18)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:52:47
Rank: #2773 (+59)
25.2M → Finish
6:31 | 6:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:49
Pace6:28 /mi
2nd Half
Distance13.11 mi
Time1:27:58
Pace6:43 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:22:1619:586:2619:58
6:26
-
10K
6.21 mi10:42:1539:576:2619:59
6:26
0:00
15K
9.32 mi11:02:221:00:046:2720:07
6:28
+0:02
20K
12.43 mi11:22:441:20:266:2820:22
6:33
+0:05
Half
13.11 mi11:27:071:24:496:284:23
6:25
-0:08
25K
15.53 mi11:43:101:40:526:3016:03
6:37
+0:12
30K
18.64 mi12:04:152:01:576:3321:05
6:47
+0:10
20M
20.00 mi12:13:312:11:136:349:16
6:49
+0:02
21M
21.00 mi12:20:412:18:236:357:10
7:10
+0:21
35K
21.75 mi12:25:312:23:136:354:50
6:28
-0:42
23M
23.00 mi12:33:552:31:376:368:24
6:43
+0:15
24M
24.00 mi12:40:282:38:106:356:33
6:33
-0:10
40K
24.85 mi12:46:042:43:466:355:36
6:33
0:00
25.2M
25.20 mi12:48:342:46:166:362:30
7:15
+0:42
Finish
26.22 mi12:55:052:52:476:366:31
6:24
-0:51

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

6:24 /mi

Average Pace

6:36 /mi

Slowest Pace

7:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:43:07

94% of race

Time at Steady Pace

9:40

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:35 /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 mi10:22:1619:586:2619:58
6:26
#3292
10K
6.21 mi10:42:1539:576:2619:59
6:26
#3260
15K
9.32 mi11:02:221:00:046:2720:07
6:28
#3282
20K
12.43 mi11:22:441:20:266:2820:22
6:33
#3304
Half
13.11 mi11:27:071:24:496:284:23
6:25
#3299
25K
15.53 mi11:43:101:40:526:3016:03
6:37
#3325
30K
18.64 mi12:04:152:01:576:3321:05
6:47
#3275
20M
20.00 mi12:13:312:11:136:349:16
6:49
#3210
21M
21.00 mi12:20:412:18:236:357:10
7:10
#3166
35K
21.75 mi12:25:312:23:136:354:50
6:28
#3099
23M
23.00 mi12:33:552:31:376:368:24
6:43
#2994
24M
24.00 mi12:40:282:38:106:356:33
6:33
#2937
40K
24.85 mi12:46:042:43:466:355:36
6:33
#2850
25.2M
25.20 mi12:48:342:46:166:362:30
7:15
#2832
Finish
26.22 mi12:55:052:52:476:366:31
6:24
#2773
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM18-39Seg. OverallSeg. MalesSeg. M18-39
5K3.11 mi3.11 mi3292312531253395(Top 12%)3219(Top 20%)3219(Top 57%)
10K6.21 mi3.10 mi3260+323097+283097+283242(Top 11%)3080(Top 19%)3080(Top 55%)
15K9.32 mi3.11 mi3282-223120-233120-233395(Top 12%)3219(Top 20%)3219(Top 57%)
20K12.43 mi3.11 mi3304-223145-253145-253433(Top 12%)3251(Top 20%)3251(Top 58%)
Half13.11 mi0.68 mi3299+53139+63139+63160(Top 11%)3001(Top 19%)3001(Top 53%)
25K15.53 mi2.42 mi3325-263161-223161-223566(Top 13%)3358(Top 21%)3358(Top 60%)
30K18.64 mi3.11 mi3275+503102+593102+593345(Top 12%)3123(Top 19%)3123(Top 55%)
20M20.00 mi1.36 mi3210+653042+603042+603016(Top 11%)2806(Top 17%)2806(Top 50%)
21M21.00 mi1.00 mi3166+442999+432999+432961(Top 10%)2735(Top 17%)2735(Top 48%)
35K21.75 mi0.75 mi3099+672935+642935+642263(Top 8%)2115(Top 13%)2115(Top 37%)
23M23.00 mi1.25 mi2994+1052832+1032832+1032283(Top 8%)2126(Top 13%)2126(Top 38%)
24M24.00 mi1.00 mi2937+572778+542778+542240(Top 8%)2072(Top 13%)2072(Top 37%)
40K24.85 mi0.85 mi2850+872697+812697+811794(Top 6%)1657(Top 10%)1657(Top 29%)
25.2M25.20 mi0.35 mi2832+182680+172680+172309(Top 8%)2062(Top 13%)2062(Top 37%)
Finish26.22 mi1.02 mi2773+592623+572623+572279(Top 8%)2082(Top 13%)2082(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 12%
×21stories
+97ft-345ft

Overall

3395

Males

3219

M18-39

3219

5K→10K

3.1 - 6.2 mi

Top 11%
×5stories
+79ft-138ft

Overall

3242

Males

3080

M18-39

3080

10K→15K

6.2 - 9.3 mi

Top 12%
×3stories
+67ft-78ft

Overall

3395

Males

3219

M18-39

3219

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3433

Males

3251

M18-39

3251

20K→Half

12.4 - 13.1 mi

Top 11%
×2stories
+19ft-37ft

Overall

3160

Males

3001

M18-39

3001

Half→25K

13.1 - 15.5 mi

Top 13%
×4stories
+66ft-88ft

Overall

3566

Males

3358

M18-39

3358

25K→30K

15.5 - 18.6 mi

Top 12%
×9stories
+181ft-148ft

Overall

3345

Males

3123

M18-39

3123

30K→20M

18.6 - 20.0 mi

Top 11%
×5stories
+64ft-50ft

Overall

3016

Males

2806

M18-39

2806

20M→21M

20.0 - 21.0 mi

Top 10%
×8stories
+106ft-24ft

Overall

2961

Males

2735

M18-39

2735

21M→35K

21.0 - 21.8 mi

Top 8%
×7stories
+17ft-86ft

Overall

2263

Males

2115

M18-39

2115

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2283

Males

2126

M18-39

2126

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2240

Males

2072

M18-39

2072

24M→40K

24.0 - 24.9 mi

Top 6%
×1story
+6ft-20ft

Overall

1794

Males

1657

M18-39

1657

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2309

Males

2062

M18-39

2062

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2279

Males

2082

M18-39

2082

Passing Analysis

Category:
Athletes Passed
1131
Passed By
612
Net Change
+519
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#3292
5K → 10K146114+32#3292#3260
10K → 15K82104-22#3260#3282
15K → 20K88110-22#3282#3304
20K → Half1510+5#3304#3299
Half → 25K6187-26#3299#3325
25K → 30K12777+50#3325#3275
30K → 20M8520+65#3275#3210
20M → 21M7733+44#3210#3166
21M → 35K703+67#3166#3099
35K → 23M12015+105#3099#2994
23M → 24M6811+57#2994#2937
24M → 40K936+87#2937#2850
40K → 25.2M2810+18#2850#2832
25.2M → Finish7112+59#2832#2773
TOTALS1131612+519
📊

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