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BOSTON MARATHON 2025

Jeffrey Klein

Bib: 21608•M

AZ

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M60-64)
#0 / 1259
Top 50%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:54
Rank: #18939
Start → 5K
25:54 | 8:20/mi
10K· 6.21 mi
51:47
Rank: #18824 (+115)
5K → 10K
25:53 | 8:20/mi
15K· 9.32 mi
1:18:36
Rank: #19239 (-415)
10K → 15K
26:49 | 8:38/mi
20K· 12.43 mi
1:45:12
Rank: #19041 (+198)
15K → 20K
26:36 | 8:34/mi
Half· 13.11 mi
1:50:54
Rank: #19008 (+33)
20K → Half
5:42 | 8:21/mi
25K· 15.53 mi
2:11:28
Rank: #18680 (+328)
Half → 25K
20:34 | 8:29/mi
30K· 18.64 mi
2:40:01
Rank: #18660 (+20)
25K → 30K
28:33 | 9:11/mi
20M
2:52:08
Rank: #18467 (+193)
30K → 20M
12:07 | 8:55/mi
21M
3:02:17
Rank: #18487 (-20)
20M → 21M
10:09 | 10:09/mi
35K· 21.75 mi
3:09:16
Rank: #18562 (-75)
21M → 35K
6:59 | 9:20/mi
23M
3:20:58
Rank: #18508 (+54)
35K → 23M
11:42 | 9:21/mi
24M
3:29:54
Rank: #18420 (+88)
23M → 24M
8:56 | 8:56/mi
40K· 24.85 mi
3:37:50
Rank: #18398 (+22)
24M → 40K
7:56 | 9:17/mi
25.2M
3:41:38
Rank: #18451 (-53)
40K → 25.2M
3:48 | 11:01/mi
Finish· 26.22 mi
3:50:50
Rank: #18509 (-58)
25.2M → Finish
9:12 | 9:02/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:54
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time1:59:56
Pace9:09 /mi
📊Positive Split: 8.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:2925:548:2025:54
8:20
-
10K
6.21 mi11:46:2251:478:2025:53
8:20
0:00
15K
9.32 mi12:13:111:18:368:2626:49
8:38
+0:18
20K
12.43 mi12:39:471:45:128:2826:36
8:34
-0:04
Half
13.11 mi12:45:291:50:548:285:42
8:21
-0:13
25K
15.53 mi13:06:032:11:288:2820:34
8:29
+0:08
30K
18.64 mi13:34:362:40:018:3528:33
9:11
+0:42
20M
20.00 mi13:46:432:52:088:3612:07
8:55
-0:16
21M
21.00 mi13:56:523:02:178:4110:09
10:09
+1:14
35K
21.75 mi14:03:513:09:168:426:59
9:20
-0:49
23M
23.00 mi14:15:333:20:588:4411:42
9:21
+0:01
24M
24.00 mi14:24:293:29:548:458:56
8:56
-0:25
40K
24.85 mi14:32:253:37:508:467:56
9:17
+0:21
25.2M
25.20 mi14:36:133:41:388:483:48
11:01
+1:44
Finish
26.22 mi14:45:253:50:508:499:12
9:02
-1:59

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

8:20 /mi

Average Pace

8:49 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:39

45% of race

Time at Steady Pace

1:33:33

41% of race

Time at Slower Pace

32:38

14% of race

Average Pace: 8:48 /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 mi11:20:2925:548:2025:54
8:20
#18939
10K
6.21 mi11:46:2251:478:2025:53
8:20
#18824
15K
9.32 mi12:13:111:18:368:2626:49
8:38
#19239
20K
12.43 mi12:39:471:45:128:2826:36
8:34
#19041
Half
13.11 mi12:45:291:50:548:285:42
8:21
#19008
25K
15.53 mi13:06:032:11:288:2820:34
8:29
#18680
30K
18.64 mi13:34:362:40:018:3528:33
9:11
#18660
20M
20.00 mi13:46:432:52:088:3612:07
8:55
#18467
21M
21.00 mi13:56:523:02:178:4110:09
10:09
#18487
35K
21.75 mi14:03:513:09:168:426:59
9:20
#18562
23M
23.00 mi14:15:333:20:588:4411:42
9:21
#18508
24M
24.00 mi14:24:293:29:548:458:56
8:56
#18420
40K
24.85 mi14:32:253:37:508:467:56
9:17
#18398
25.2M
25.20 mi14:36:133:41:388:483:48
11:01
#18451
Finish
26.22 mi14:45:253:50:508:499:12
9:02
#18509
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi18939120081200820083(Top 71%)12546(Top 78%)12546(Top 997%)
10K6.21 mi3.10 mi18824+11511961+4711961+4718746(Top 66%)11958(Top 74%)11958(Top 950%)
15K9.32 mi3.11 mi19239-41512154-19312154-19320083(Top 71%)12546(Top 78%)12546(Top 997%)
20K12.43 mi3.11 mi19041+19812056+9812056+9818607(Top 66%)11863(Top 74%)11863(Top 942%)
Half13.11 mi0.68 mi19008+3312041+1512041+1518262(Top 64%)11740(Top 73%)11740(Top 932%)
25K15.53 mi2.42 mi18680+32811889+15211889+15217074(Top 60%)11136(Top 69%)11136(Top 885%)
30K18.64 mi3.11 mi18660+2011856+3311856+3318599(Top 65%)11660(Top 72%)11660(Top 926%)
20M20.00 mi1.36 mi18467+19311735+12111735+12116336(Top 58%)10508(Top 65%)10508(Top 835%)
21M21.00 mi1.00 mi18487-2011718+1711718+1718844(Top 66%)11536(Top 72%)11536(Top 916%)
35K21.75 mi0.75 mi18562-7511736-1811736-1819700(Top 69%)11826(Top 73%)11826(Top 939%)
23M23.00 mi1.25 mi18508+5411686+5011686+5017987(Top 63%)10965(Top 68%)10965(Top 871%)
24M24.00 mi1.00 mi18420+8811622+6411622+6417008(Top 60%)10465(Top 65%)10465(Top 831%)
40K24.85 mi0.85 mi18398+2211579+4311579+4317733(Top 62%)10704(Top 66%)10704(Top 850%)
25.2M25.20 mi0.35 mi18451-5311596-1711596-1720656(Top 73%)12103(Top 75%)12103(Top 961%)
Finish26.22 mi1.02 mi18509-5811603-711603-719180(Top 68%)11419(Top 71%)11419(Top 907%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

20083

Males

12546

M60-64

12546

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

18746

Males

11958

M60-64

11958

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

20083

Males

12546

M60-64

12546

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

18607

Males

11863

M60-64

11863

20K→Half

12.4 - 13.1 mi

Top 64%
×2stories
+19ft-37ft

Overall

18262

Males

11740

M60-64

11740

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

17074

Males

11136

M60-64

11136

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

18599

Males

11660

M60-64

11660

30K→20M

18.6 - 20.0 mi

Top 58%
×5stories
+64ft-50ft

Overall

16336

Males

10508

M60-64

10508

20M→21M

20.0 - 21.0 mi

Top 66%
×8stories
+106ft-24ft

Overall

18844

Males

11536

M60-64

11536

21M→35K

21.0 - 21.8 mi

Top 69%
×7stories
+17ft-86ft

Overall

19700

Males

11826

M60-64

11826

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

17987

Males

10965

M60-64

10965

23M→24M

23.0 - 24.0 mi

Top 60%
×6stories
+12ft-82ft

Overall

17008

Males

10465

M60-64

10465

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17733

Males

10704

M60-64

10704

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

20656

Males

12103

M60-64

12103

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2stories
+22ft-21ft

Overall

19180

Males

11419

M60-64

11419

Passing Analysis

Category:
Athletes Passed
2078
Passed By
1648
Net Change
+430
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18939
5K → 10K315200+115#18939#18824
10K → 15K89504-415#18824#19239
15K → 20K29799+198#19239#19041
20K → Half4815+33#19041#19008
Half → 25K34315+328#19008#18680
25K → 30K254234+20#18680#18660
30K → 20M21623+193#18660#18467
20M → 21M100120-20#18467#18487
21M → 35K33108-75#18487#18562
35K → 23M12672+54#18562#18508
23M → 24M12234+88#18508#18420
24M → 40K8058+22#18420#18398
40K → 25.2M760-53#18398#18451
25.2M → Finish48106-58#18451#18509
TOTALS20781648+430
📊

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