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BOSTON MARATHON 2025

Michael Jefferson

Bib: 28540•M

MA

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:54
Rank: #20781
Start → 5K
26:54 | 8:39/mi
10K· 6.21 mi
53:46
Rank: #20666 (+115)
5K → 10K
26:52 | 8:39/mi
15K· 9.32 mi
1:20:22
Rank: #20321 (+345)
10K → 15K
26:36 | 8:34/mi
20K· 12.43 mi
1:46:59
Rank: #19907 (+414)
15K → 20K
26:37 | 8:34/mi
Half· 13.11 mi
1:52:44
Rank: #19864 (+43)
20K → Half
5:45 | 8:26/mi
25K· 15.53 mi
2:14:02
Rank: #19669 (+195)
Half → 25K
21:18 | 8:47/mi
30K· 18.64 mi
2:42:34
Rank: #19439 (+230)
25K → 30K
28:32 | 9:11/mi
20M
2:55:25
Rank: #19406 (+33)
30K → 20M
12:51 | 9:27/mi
21M
3:05:50
Rank: #19432 (-26)
20M → 21M
10:25 | 10:25/mi
35K· 21.75 mi
3:12:39
Rank: #19410 (+22)
21M → 35K
6:49 | 9:07/mi
23M
3:25:04
Rank: #19494 (-84)
35K → 23M
12:25 | 9:55/mi
24M
3:34:28
Rank: #19486 (+8)
23M → 24M
9:24 | 9:24/mi
40K· 24.85 mi
3:42:49
Rank: #19492 (-6)
24M → 40K
8:21 | 9:46/mi
25.2M
3:46:51
Rank: #19573 (-81)
40K → 25.2M
4:02 | 11:42/mi
Finish· 26.22 mi
3:56:01
Rank: #19552 (+21)
25.2M → Finish
9:10 | 9:00/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:44
Pace8:36 /mi
2nd Half
Distance13.11 mi
Time2:03:17
Pace9:24 /mi
📊Positive Split: 9.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:0926:548:3926:54
8:39
-
10K
6.21 mi12:20:0153:468:3926:52
8:39
0:00
15K
9.32 mi12:46:371:20:228:3726:36
8:34
-0:05
20K
12.43 mi13:13:141:46:598:3726:37
8:34
0:00
Half
13.11 mi13:18:591:52:448:365:45
8:26
-0:08
25K
15.53 mi13:40:172:14:028:3821:18
8:47
+0:21
30K
18.64 mi14:08:492:42:348:4328:32
9:11
+0:24
20M
20.00 mi14:21:402:55:258:4612:51
9:27
+0:16
21M
21.00 mi14:32:053:05:508:5110:25
10:25
+0:58
35K
21.75 mi14:38:543:12:398:516:49
9:07
-1:18
23M
23.00 mi14:51:193:25:048:5512:25
9:55
+0:48
24M
24.00 mi15:00:433:34:288:569:24
9:24
-0:31
40K
24.85 mi15:09:043:42:498:588:21
9:46
+0:22
25.2M
25.20 mi15:13:063:46:519:004:02
11:42
+1:56
Finish
26.22 mi15:22:163:56:019:009:10
9:00
-2:42

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

8:26 /mi

Average Pace

9:00 /mi

Slowest Pace

11:42 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:52:44

48% of race

Time at Steady Pace

1:28:04

37% of race

Time at Slower Pace

35:13

15% of race

Average Pace: 9:00 /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 mi11:53:0926:548:3926:54
8:39
#20781
10K
6.21 mi12:20:0153:468:3926:52
8:39
#20666
15K
9.32 mi12:46:371:20:228:3726:36
8:34
#20321
20K
12.43 mi13:13:141:46:598:3726:37
8:34
#19907
Half
13.11 mi13:18:591:52:448:365:45
8:26
#19864
25K
15.53 mi13:40:172:14:028:3821:18
8:47
#19669
30K
18.64 mi14:08:492:42:348:4328:32
9:11
#19439
20M
20.00 mi14:21:402:55:258:4612:51
9:27
#19406
21M
21.00 mi14:32:053:05:508:5110:25
10:25
#19432
35K
21.75 mi14:38:543:12:398:516:49
9:07
#19410
23M
23.00 mi14:51:193:25:048:5512:25
9:55
#19494
24M
24.00 mi15:00:433:34:288:569:24
9:24
#19486
40K
24.85 mi15:09:043:42:498:588:21
9:46
#19492
25.2M
25.20 mi15:13:063:46:519:004:02
11:42
#19573
Finish
26.22 mi15:22:163:56:019:009:10
9:00
#19552
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi20781127611276119694(Top 69%)12367(Top 77%)12367(Top 550%)
10K6.21 mi3.10 mi20666+11512738+2312738+2320581(Top 72%)12732(Top 79%)12732(Top 567%)
15K9.32 mi3.11 mi20321+34512609+12912609+12919694(Top 69%)12367(Top 77%)12367(Top 550%)
20K12.43 mi3.11 mi19907+41412430+17912430+17918637(Top 66%)11879(Top 74%)11879(Top 529%)
Half13.11 mi0.68 mi19864+4312410+2012410+2018724(Top 66%)11933(Top 74%)11933(Top 531%)
25K15.53 mi2.42 mi19669+19512314+9612314+9618839(Top 66%)11894(Top 74%)11894(Top 529%)
30K18.64 mi3.11 mi19439+23012180+13412180+13418571(Top 65%)11652(Top 72%)11652(Top 519%)
20M20.00 mi1.36 mi19406+3312144+3612144+3618965(Top 67%)11675(Top 72%)11675(Top 520%)
21M21.00 mi1.00 mi19432-2612127+1712127+1719738(Top 69%)11925(Top 74%)11925(Top 531%)
35K21.75 mi0.75 mi19410+2212102+2512102+2518750(Top 66%)11376(Top 71%)11376(Top 506%)
23M23.00 mi1.25 mi19494-8412098+412098+420221(Top 71%)12010(Top 75%)12010(Top 534%)
24M24.00 mi1.00 mi19486+812080+1812080+1819216(Top 68%)11509(Top 71%)11509(Top 512%)
40K24.85 mi0.85 mi19492-612064+1612064+1619690(Top 69%)11655(Top 72%)11655(Top 519%)
25.2M25.20 mi0.35 mi19573-8112080-1612080-1622517(Top 79%)13032(Top 81%)13032(Top 580%)
Finish26.22 mi1.02 mi19552+2112057+2312057+2319002(Top 67%)11356(Top 71%)11356(Top 505%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21stories
+97ft-345ft

Overall

19694

Males

12367

M40-44

12367

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

20581

Males

12732

M40-44

12732

10K→15K

6.2 - 9.3 mi

Top 69%
×3stories
+67ft-78ft

Overall

19694

Males

12367

M40-44

12367

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

18637

Males

11879

M40-44

11879

20K→Half

12.4 - 13.1 mi

Top 66%
×2stories
+19ft-37ft

Overall

18724

Males

11933

M40-44

11933

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

18839

Males

11894

M40-44

11894

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

18571

Males

11652

M40-44

11652

30K→20M

18.6 - 20.0 mi

Top 67%
×5stories
+64ft-50ft

Overall

18965

Males

11675

M40-44

11675

20M→21M

20.0 - 21.0 mi

Top 69%
×8stories
+106ft-24ft

Overall

19738

Males

11925

M40-44

11925

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

18750

Males

11376

M40-44

11376

35K→23M

21.8 - 23.0 mi

Top 71%
×5stories
+23ft-63ft

Overall

20221

Males

12010

M40-44

12010

23M→24M

23.0 - 24.0 mi

Top 68%
×6stories
+12ft-82ft

Overall

19216

Males

11509

M40-44

11509

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

19690

Males

11655

M40-44

11655

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

22517

Males

13032

M40-44

13032

25.2M→Finish

25.2 - 26.2 mi

Top 67%
×2stories
+22ft-21ft

Overall

19002

Males

11356

M40-44

11356

Passing Analysis

Category:
Athletes Passed
2384
Passed By
1155
Net Change
+1229
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20781
5K → 10K340225+115#20781#20666
10K → 15K40560+345#20666#20321
15K → 20K44026+414#20321#19907
20K → Half529+43#19907#19864
Half → 25K26065+195#19864#19669
25K → 30K335105+230#19669#19439
30K → 20M11481+33#19439#19406
20M → 21M93119-26#19406#19432
21M → 35K6240+22#19432#19410
35K → 23M70154-84#19410#19494
23M → 24M7466+8#19494#19486
24M → 40K6167-6#19486#19492
40K → 25.2M1394-81#19492#19573
25.2M → Finish6544+21#19573#19552
TOTALS23841155+1229
📊

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