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BOSTON MARATHON 2025

Daniel Klein

Bib: 6225•M

PA

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
20:49
Rank: #5450
Start → 5K
20:49 | 6:42/mi
10K· 6.21 mi
41:39
Rank: #5395 (+55)
5K → 10K
20:50 | 6:42/mi
15K· 9.32 mi
1:02:00
Rank: #4814 (+581)
10K → 15K
20:21 | 6:33/mi
20K· 12.43 mi
1:22:25
Rank: #4420 (+394)
15K → 20K
20:25 | 6:34/mi
Half· 13.11 mi
1:26:50
Rank: #4357 (+63)
20K → Half
4:25 | 6:28/mi
25K· 15.53 mi
1:42:48
Rank: #4134 (+223)
Half → 25K
15:58 | 6:35/mi
30K· 18.64 mi
2:03:31
Rank: #3798 (+336)
25K → 30K
20:43 | 6:40/mi
20M
2:12:44
Rank: #3690 (+108)
30K → 20M
9:13 | 6:47/mi
21M
2:19:48
Rank: #3594 (+96)
20M → 21M
7:04 | 7:04/mi
35K· 21.75 mi
2:24:45
Rank: #3553 (+41)
21M → 35K
4:57 | 6:37/mi
23M
2:33:19
Rank: #3447 (+106)
35K → 23M
8:34 | 6:51/mi
24M
2:40:07
Rank: #3415 (+32)
23M → 24M
6:48 | 6:48/mi
40K· 24.85 mi
2:46:04
Rank: #3394 (+21)
24M → 40K
5:57 | 6:58/mi
25.2M
2:48:37
Rank: #3374 (+20)
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:55:17
Rank: #3308 (+66)
25.2M → Finish
6:40 | 6:33/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:26:50
Pace6:37 /mi
2nd Half
Distance13.11 mi
Time1:28:27
Pace6:45 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:25:5720:496:4220:49
6:42
-
10K
6.21 mi10:46:4741:396:4220:50
6:42
0:00
15K
9.32 mi11:07:081:02:006:3920:21
6:33
-0:09
20K
12.43 mi11:27:331:22:256:3820:25
6:34
+0:01
Half
13.11 mi11:31:581:26:506:374:25
6:28
-0:06
25K
15.53 mi11:47:561:42:486:3715:58
6:35
+0:07
30K
18.64 mi12:08:392:03:316:3820:43
6:40
+0:05
20M
20.00 mi12:17:522:12:446:389:13
6:47
+0:07
21M
21.00 mi12:24:562:19:486:397:04
7:04
+0:17
35K
21.75 mi12:29:532:24:456:394:57
6:37
-0:27
23M
23.00 mi12:38:272:33:196:408:34
6:51
+0:14
24M
24.00 mi12:45:152:40:076:406:48
6:48
-0:03
40K
24.85 mi12:51:122:46:046:415:57
6:58
+0:10
25.2M
25.20 mi12:53:452:48:376:412:33
7:24
+0:26
Finish
26.22 mi13:00:252:55:176:416:40
6:33
-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

6:28 /mi

Average Pace

6:41 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:52:44

99% of race

Time at Steady Pace

2:33

1% of race

Time at Slower Pace

0:00

0% 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 mi10:25:5720:496:4220:49
6:42
#5450
10K
6.21 mi10:46:4741:396:4220:50
6:42
#5395
15K
9.32 mi11:07:081:02:006:3920:21
6:33
#4814
20K
12.43 mi11:27:331:22:256:3820:25
6:34
#4420
Half
13.11 mi11:31:581:26:506:374:25
6:28
#4357
25K
15.53 mi11:47:561:42:486:3715:58
6:35
#4134
30K
18.64 mi12:08:392:03:316:3820:43
6:40
#3798
20M
20.00 mi12:17:522:12:446:389:13
6:47
#3690
21M
21.00 mi12:24:562:19:486:397:04
7:04
#3594
35K
21.75 mi12:29:532:24:456:394:57
6:37
#3553
23M
23.00 mi12:38:272:33:196:408:34
6:51
#3447
24M
24.00 mi12:45:152:40:076:406:48
6:48
#3415
40K
24.85 mi12:51:122:46:046:415:57
6:58
#3394
25.2M
25.20 mi12:53:452:48:376:412:33
7:24
#3374
Finish
26.22 mi13:00:252:55:176:416:40
6:33
#3308
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM45-49Seg. OverallSeg. MalesSeg. M45-49
5K3.11 mi3.11 mi5450506050603887(Top 14%)3667(Top 23%)3667(Top 154%)
10K6.21 mi3.10 mi5395+554998+624998+625386(Top 19%)4978(Top 31%)4978(Top 209%)
15K9.32 mi3.11 mi4814+5814500+4984500+4983887(Top 14%)3667(Top 23%)3667(Top 154%)
20K12.43 mi3.11 mi4420+3944147+3534147+3533537(Top 12%)3347(Top 21%)3347(Top 140%)
Half13.11 mi0.68 mi4357+634090+574090+573534(Top 12%)3350(Top 21%)3350(Top 140%)
25K15.53 mi2.42 mi4134+2233884+2063884+2063379(Top 12%)3193(Top 20%)3193(Top 134%)
30K18.64 mi3.11 mi3798+3363580+3043580+3042737(Top 10%)2591(Top 16%)2591(Top 109%)
20M20.00 mi1.36 mi3690+1083478+1023478+1022849(Top 10%)2665(Top 17%)2665(Top 112%)
21M21.00 mi1.00 mi3594+963384+943384+942556(Top 9%)2382(Top 15%)2382(Top 100%)
35K21.75 mi0.75 mi3553+413345+393345+393067(Top 11%)2822(Top 18%)2822(Top 118%)
23M23.00 mi1.25 mi3447+1063246+993246+992925(Top 10%)2680(Top 17%)2680(Top 112%)
24M24.00 mi1.00 mi3415+323213+333213+333523(Top 12%)3158(Top 20%)3158(Top 132%)
40K24.85 mi0.85 mi3394+213188+253188+253673(Top 13%)3243(Top 20%)3243(Top 136%)
25.2M25.20 mi0.35 mi3374+203165+233165+232960(Top 10%)2639(Top 16%)2639(Top 111%)
Finish26.22 mi1.02 mi3308+663097+683097+683036(Top 11%)2704(Top 17%)2704(Top 113%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 14%
×21stories
+97ft-345ft

Overall

3887

Males

3667

M45-49

3667

5K→10K

3.1 - 6.2 mi

Top 19%
×5stories
+79ft-138ft

Overall

5386

Males

4978

M45-49

4978

10K→15K

6.2 - 9.3 mi

Top 14%
×3stories
+67ft-78ft

Overall

3887

Males

3667

M45-49

3667

15K→20K

9.3 - 12.4 mi

Top 12%
×5stories
+106ft-86ft

Overall

3537

Males

3347

M45-49

3347

20K→Half

12.4 - 13.1 mi

Top 12%
×2stories
+19ft-37ft

Overall

3534

Males

3350

M45-49

3350

Half→25K

13.1 - 15.5 mi

Top 12%
×4stories
+66ft-88ft

Overall

3379

Males

3193

M45-49

3193

25K→30K

15.5 - 18.6 mi

Top 10%
×9stories
+181ft-148ft

Overall

2737

Males

2591

M45-49

2591

30K→20M

18.6 - 20.0 mi

Top 10%
×5stories
+64ft-50ft

Overall

2849

Males

2665

M45-49

2665

20M→21M

20.0 - 21.0 mi

Top 9%
×8stories
+106ft-24ft

Overall

2556

Males

2382

M45-49

2382

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

3067

Males

2822

M45-49

2822

35K→23M

21.8 - 23.0 mi

Top 10%
×5stories
+23ft-63ft

Overall

2925

Males

2680

M45-49

2680

23M→24M

23.0 - 24.0 mi

Top 12%
×6stories
+12ft-82ft

Overall

3523

Males

3158

M45-49

3158

24M→40K

24.0 - 24.9 mi

Top 13%
×1story
+6ft-20ft

Overall

3673

Males

3243

M45-49

3243

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2960

Males

2639

M45-49

2639

25.2M→Finish

25.2 - 26.2 mi

Top 11%
×2stories
+22ft-21ft

Overall

3036

Males

2704

M45-49

2704

Passing Analysis

Category:
Athletes Passed
2467
Passed By
325
Net Change
+2142
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#5450
5K → 10K218163+55#5450#5395
10K → 15K5865+581#5395#4814
15K → 20K3962+394#4814#4420
20K → Half674+63#4420#4357
Half → 25K2307+223#4357#4134
25K → 30K3415+336#4134#3798
30K → 20M11911+108#3798#3690
20M → 21M1059+96#3690#3594
21M → 35K5615+41#3594#3553
35K → 23M12418+106#3553#3447
23M → 24M6331+32#3447#3415
24M → 40K5130+21#3415#3394
40K → 25.2M3212+20#3394#3374
25.2M → Finish7913+66#3374#3308
TOTALS2467325+2142
📊

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