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BOSTON MARATHON 2025

Santosh Karmacharya

Bib: 6443•M

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 12%
Gender (Male)
#0 / 16105
Top 19%
Masters (Masters Men)
#0 / 10463
Top 7%
Division (M45-49)
#0 / 2386
Top 8%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
20:38
Rank: #4948
Start → 5K
20:38 | 6:38/mi
10K· 6.21 mi
40:57
Rank: #4424 (+524)
5K → 10K
20:19 | 6:32/mi
15K· 9.32 mi
1:01:16
Rank: #4200 (+224)
10K → 15K
20:19 | 6:32/mi
20K· 12.43 mi
1:21:48
Rank: #4027 (+173)
15K → 20K
20:32 | 6:37/mi
Half· 13.11 mi
1:26:18
Rank: #4035 (-8)
20K → Half
4:30 | 6:36/mi
25K· 15.53 mi
1:42:02
Rank: #3808 (+227)
Half → 25K
15:44 | 6:29/mi
30K· 18.64 mi
2:02:57
Rank: #3633 (+175)
25K → 30K
20:55 | 6:44/mi
20M
2:13:21
Rank: #3890 (-257)
30K → 20M
10:24 | 7:39/mi
21M
2:20:35
Rank: #3815 (+75)
20M → 21M
7:14 | 7:14/mi
35K· 21.75 mi
2:25:29
Rank: #3758 (+57)
21M → 35K
4:54 | 6:33/mi
23M
2:33:54
Rank: #3624 (+134)
35K → 23M
8:25 | 6:43/mi
24M
2:40:29
Rank: #3520 (+104)
23M → 24M
6:35 | 6:35/mi
40K· 24.85 mi
2:46:12
Rank: #3433 (+87)
24M → 40K
5:43 | 6:41/mi
25.2M
2:48:41
Rank: #3387 (+46)
40K → 25.2M
2:29 | 7:12/mi
Finish· 26.22 mi
2:55:12
Rank: #3289 (+98)
25.2M → Finish
6:31 | 6:24/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:18
Pace6:35 /mi
2nd Half
Distance13.11 mi
Time1:28:54
Pace6:47 /mi
📊Positive Split: 3.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:5020:386:3820:38
6:38
-
10K
6.21 mi10:46:0940:576:3520:19
6:32
-0:06
15K
9.32 mi11:06:281:01:166:3420:19
6:32
0:00
20K
12.43 mi11:27:001:21:486:3520:32
6:37
+0:05
Half
13.11 mi11:31:301:26:186:354:30
6:36
-0:01
25K
15.53 mi11:47:141:42:026:3415:44
6:29
-0:07
30K
18.64 mi12:08:092:02:576:3620:55
6:44
+0:15
20M
20.00 mi12:18:332:13:216:4010:24
7:39
+0:55
21M
21.00 mi12:25:472:20:356:427:14
7:14
-0:25
35K
21.75 mi12:30:412:25:296:414:54
6:33
-0:41
23M
23.00 mi12:39:062:33:546:418:25
6:43
+0:10
24M
24.00 mi12:45:412:40:296:416:35
6:35
-0:08
40K
24.85 mi12:51:242:46:126:415:43
6:41
+0:06
25.2M
25.20 mi12:53:532:48:416:422:29
7:12
+0:31
Finish
26.22 mi13:00:242:55:126:416:31
6:24
-0:48

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

6:41 /mi

Slowest Pace

7:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:05

89% of race

Time at Steady Pace

9:43

6% of race

Time at Slower Pace

10:24

6% of race

Average Pace: 6:41 /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 mi10:25:5020:386:3820:38
6:38
#4948
10K
6.21 mi10:46:0940:576:3520:19
6:32
#4424
15K
9.32 mi11:06:281:01:166:3420:19
6:32
#4200
20K
12.43 mi11:27:001:21:486:3520:32
6:37
#4027
Half
13.11 mi11:31:301:26:186:354:30
6:36
#4035
25K
15.53 mi11:47:141:42:026:3415:44
6:29
#3808
30K
18.64 mi12:08:092:02:576:3620:55
6:44
#3633
20M
20.00 mi12:18:332:13:216:4010:24
7:39
#3890
21M
21.00 mi12:25:472:20:356:427:14
7:14
#3815
35K
21.75 mi12:30:412:25:296:414:54
6:33
#3758
23M
23.00 mi12:39:062:33:546:418:25
6:43
#3624
24M
24.00 mi12:45:412:40:296:416:35
6:35
#3520
40K
24.85 mi12:51:242:46:126:415:43
6:41
#3433
25.2M
25.20 mi12:53:532:48:416:422:29
7:12
#3387
Finish
26.22 mi13:00:242:55:126:416:31
6:24
#3289
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi4948463246323815(Top 13%)3600(Top 22%)3600(Top 151%)
10K6.21 mi3.10 mi4424+5244161+4714161+4714005(Top 14%)3770(Top 23%)3770(Top 158%)
15K9.32 mi3.11 mi4200+2243955+2063955+2063815(Top 13%)3600(Top 22%)3600(Top 151%)
20K12.43 mi3.11 mi4027+1733792+1633792+1633757(Top 13%)3547(Top 22%)3547(Top 149%)
Half13.11 mi0.68 mi4035-83797-53797-54374(Top 15%)4096(Top 25%)4096(Top 172%)
25K15.53 mi2.42 mi3808+2273589+2083589+2082845(Top 10%)2707(Top 17%)2707(Top 113%)
30K18.64 mi3.11 mi3633+1753431+1583431+1583053(Top 11%)2870(Top 18%)2870(Top 120%)
20M20.00 mi1.36 mi3890-2573654-2233654-2238024(Top 28%)6451(Top 40%)6451(Top 270%)
21M21.00 mi1.00 mi3815+753584+703584+703291(Top 12%)3029(Top 19%)3029(Top 127%)
35K21.75 mi0.75 mi3758+573531+533531+532745(Top 10%)2543(Top 16%)2543(Top 107%)
23M23.00 mi1.25 mi3624+1343403+1283403+1282366(Top 8%)2204(Top 14%)2204(Top 92%)
24M24.00 mi1.00 mi3520+1043303+1003303+1002434(Top 9%)2250(Top 14%)2250(Top 94%)
40K24.85 mi0.85 mi3433+873220+833220+832326(Top 8%)2131(Top 13%)2131(Top 89%)
25.2M25.20 mi0.35 mi3387+463178+423178+422184(Top 8%)1973(Top 12%)1973(Top 83%)
Finish26.22 mi1.02 mi3289+983081+973081+972307(Top 8%)2110(Top 13%)2110(Top 88%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 13%
×21stories
+97ft-345ft

Overall

3815

Males

3600

M45-49

3600

5K→10K

3.1 - 6.2 mi

Top 14%
×5stories
+79ft-138ft

Overall

4005

Males

3770

M45-49

3770

10K→15K

6.2 - 9.3 mi

Top 13%
×3stories
+67ft-78ft

Overall

3815

Males

3600

M45-49

3600

15K→20K

9.3 - 12.4 mi

Top 13%
×5stories
+106ft-86ft

Overall

3757

Males

3547

M45-49

3547

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

4374

Males

4096

M45-49

4096

Half→25K

13.1 - 15.5 mi

Top 10%
×4stories
+66ft-88ft

Overall

2845

Males

2707

M45-49

2707

25K→30K

15.5 - 18.6 mi

Top 11%
×9stories
+181ft-148ft

Overall

3053

Males

2870

M45-49

2870

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

8024

Males

6451

M45-49

6451

20M→21M

20.0 - 21.0 mi

Top 12%
×8stories
+106ft-24ft

Overall

3291

Males

3029

M45-49

3029

21M→35K

21.0 - 21.8 mi

Top 10%
×7stories
+17ft-86ft

Overall

2745

Males

2543

M45-49

2543

35K→23M

21.8 - 23.0 mi

Top 8%
×5stories
+23ft-63ft

Overall

2366

Males

2204

M45-49

2204

23M→24M

23.0 - 24.0 mi

Top 9%
×6stories
+12ft-82ft

Overall

2434

Males

2250

M45-49

2250

24M→40K

24.0 - 24.9 mi

Top 8%
×1story
+6ft-20ft

Overall

2326

Males

2131

M45-49

2131

40K→25.2M

24.9 - 25.2 mi

Top 8%
×1story
+13ft-16ft

Overall

2184

Males

1973

M45-49

1973

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2307

Males

2110

M45-49

2110

Passing Analysis

Category:
Athletes Passed
2123
Passed By
464
Net Change
+1659
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4948
5K → 10K54521+524#4948#4424
10K → 15K24622+224#4424#4200
15K → 20K20330+173#4200#4027
20K → Half1220-8#4027#4035
Half → 25K2347+227#4035#3808
25K → 30K20328+175#3808#3633
30K → 20M15272-257#3633#3890
20M → 21M9823+75#3890#3815
21M → 35K658+57#3815#3758
35K → 23M1406+134#3758#3624
23M → 24M1128+104#3624#3520
24M → 40K9710+87#3520#3433
40K → 25.2M493+46#3433#3387
25.2M → Finish1046+98#3387#3289
TOTALS2123464+1659
📊

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