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BOSTON MARATHON 2025

Defa Mu

Bib: 19487•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:22
Rank: #17850
Start → 5K
25:22 | 8:10/mi
10K· 6.21 mi
50:26
Rank: #17373 (+477)
5K → 10K
25:04 | 8:04/mi
15K· 9.32 mi
1:15:36
Rank: #17158 (+215)
10K → 15K
25:10 | 8:06/mi
20K· 12.43 mi
1:41:31
Rank: #17142 (+16)
15K → 20K
25:55 | 8:21/mi
Half· 13.11 mi
1:47:06
Rank: #17133 (+9)
20K → Half
5:35 | 8:11/mi
25K· 15.53 mi
2:07:48
Rank: #17122 (+11)
Half → 25K
20:42 | 8:32/mi
30K· 18.64 mi
2:36:12
Rank: #17328 (-206)
25K → 30K
28:24 | 9:08/mi
20M
2:49:07
Rank: #17493 (-165)
30K → 20M
12:55 | 9:30/mi
21M
2:59:12
Rank: #17570 (-77)
20M → 21M
10:05 | 10:05/mi
35K· 21.75 mi
3:06:02
Rank: #17631 (-61)
21M → 35K
6:50 | 9:08/mi
23M
3:17:57
Rank: #17712 (-81)
35K → 23M
11:55 | 9:31/mi
24M
3:27:19
Rank: #17751 (-39)
23M → 24M
9:22 | 9:22/mi
40K· 24.85 mi
3:35:30
Rank: #17827 (-76)
24M → 40K
8:11 | 9:34/mi
25.2M
3:39:02
Rank: #17836 (-9)
40K → 25.2M
3:32 | 10:15/mi
Finish· 26.22 mi
3:48:18
Rank: #17907 (-71)
25.2M → Finish
9:16 | 9:06/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:47:06
Pace8:10 /mi
2nd Half
Distance13.11 mi
Time2:01:12
Pace9:15 /mi
📊Positive Split: 13.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:3625:228:1025:22
8:10
-
10K
6.21 mi11:42:4050:268:0725:04
8:04
-0:06
15K
9.32 mi12:07:501:15:368:0725:10
8:06
+0:02
20K
12.43 mi12:33:451:41:318:1025:55
8:21
+0:15
Half
13.11 mi12:39:201:47:068:105:35
8:11
-0:10
25K
15.53 mi13:00:022:07:488:1420:42
8:32
+0:21
30K
18.64 mi13:28:262:36:128:2328:24
9:08
+0:36
20M
20.00 mi13:41:212:49:078:2712:55
9:30
+0:22
21M
21.00 mi13:51:262:59:128:3210:05
10:05
+0:35
35K
21.75 mi13:58:163:06:028:336:50
9:08
-0:57
23M
23.00 mi14:10:113:17:578:3611:55
9:31
+0:23
24M
24.00 mi14:19:333:27:198:389:22
9:22
-0:09
40K
24.85 mi14:27:443:35:308:408:11
9:34
+0:12
25.2M
25.20 mi14:31:163:39:028:423:32
10:15
+0:41
Finish
26.22 mi14:40:323:48:188:439:16
9:06
-1:09

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

8:04 /mi

Average Pace

8:43 /mi

Slowest Pace

10:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:07:48

56% of race

Time at Steady Pace

53:52

24% of race

Time at Slower Pace

46:38

20% of race

Average Pace: 8:42 /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 mi11:17:3625:228:1025:22
8:10
#17850
10K
6.21 mi11:42:4050:268:0725:04
8:04
#17373
15K
9.32 mi12:07:501:15:368:0725:10
8:06
#17158
20K
12.43 mi12:33:451:41:318:1025:55
8:21
#17142
Half
13.11 mi12:39:201:47:068:105:35
8:11
#17133
25K
15.53 mi13:00:022:07:488:1420:42
8:32
#17122
30K
18.64 mi13:28:262:36:128:2328:24
9:08
#17328
20M
20.00 mi13:41:212:49:078:2712:55
9:30
#17493
21M
21.00 mi13:51:262:59:128:3210:05
10:05
#17570
35K
21.75 mi13:58:163:06:028:336:50
9:08
#17631
23M
23.00 mi14:10:113:17:578:3611:55
9:31
#17712
24M
24.00 mi14:19:333:27:198:389:22
9:22
#17751
40K
24.85 mi14:27:443:35:308:408:11
9:34
#17827
25.2M
25.20 mi14:31:163:39:028:423:32
10:15
#17836
Finish
26.22 mi14:40:323:48:188:439:16
9:06
#17907
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi17850115481154816733(Top 59%)11108(Top 69%)11108(Top 674%)
10K6.21 mi3.10 mi17373+47711367+18111367+18116967(Top 60%)11230(Top 70%)11230(Top 681%)
15K9.32 mi3.11 mi17158+21511304+6311304+6316733(Top 59%)11108(Top 69%)11108(Top 674%)
20K12.43 mi3.11 mi17142+1611267+3711267+3717163(Top 60%)11251(Top 70%)11251(Top 683%)
Half13.11 mi0.68 mi17133+911256+1111256+1117151(Top 60%)11252(Top 70%)11252(Top 683%)
25K15.53 mi2.42 mi17122+1111235+2111235+2117403(Top 61%)11276(Top 70%)11276(Top 684%)
30K18.64 mi3.11 mi17328-20611263-2811263-2818347(Top 65%)11535(Top 72%)11535(Top 700%)
20M20.00 mi1.36 mi17493-16511298-3511298-3519184(Top 68%)11769(Top 73%)11769(Top 714%)
21M21.00 mi1.00 mi17570-7711313-1511313-1518599(Top 65%)11430(Top 71%)11430(Top 694%)
35K21.75 mi0.75 mi17631-6111326-1311326-1318849(Top 66%)11418(Top 71%)11418(Top 693%)
23M23.00 mi1.25 mi17712-81113261132618762(Top 66%)11332(Top 70%)11332(Top 688%)
24M24.00 mi1.00 mi17751-3911305+2111305+2119083(Top 67%)11450(Top 71%)11450(Top 695%)
40K24.85 mi0.85 mi17827-7611328-2311328-2318970(Top 67%)11301(Top 70%)11301(Top 686%)
25.2M25.20 mi0.35 mi17836-911321+711321+718035(Top 63%)10835(Top 67%)10835(Top 657%)
Finish26.22 mi1.02 mi17907-7111340-1911340-1919471(Top 69%)11564(Top 72%)11564(Top 702%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21stories
+97ft-345ft

Overall

16733

Males

11108

M55-59

11108

5K→10K

3.1 - 6.2 mi

Top 60%
×5stories
+79ft-138ft

Overall

16967

Males

11230

M55-59

11230

10K→15K

6.2 - 9.3 mi

Top 59%
×3stories
+67ft-78ft

Overall

16733

Males

11108

M55-59

11108

15K→20K

9.3 - 12.4 mi

Top 60%
×5stories
+106ft-86ft

Overall

17163

Males

11251

M55-59

11251

20K→Half

12.4 - 13.1 mi

Top 60%
×2stories
+19ft-37ft

Overall

17151

Males

11252

M55-59

11252

Half→25K

13.1 - 15.5 mi

Top 61%
×4stories
+66ft-88ft

Overall

17403

Males

11276

M55-59

11276

25K→30K

15.5 - 18.6 mi

Top 65%
×9stories
+181ft-148ft

Overall

18347

Males

11535

M55-59

11535

30K→20M

18.6 - 20.0 mi

Top 68%
×5stories
+64ft-50ft

Overall

19184

Males

11769

M55-59

11769

20M→21M

20.0 - 21.0 mi

Top 65%
×8stories
+106ft-24ft

Overall

18599

Males

11430

M55-59

11430

21M→35K

21.0 - 21.8 mi

Top 66%
×7stories
+17ft-86ft

Overall

18849

Males

11418

M55-59

11418

35K→23M

21.8 - 23.0 mi

Top 66%
×5stories
+23ft-63ft

Overall

18762

Males

11332

M55-59

11332

23M→24M

23.0 - 24.0 mi

Top 67%
×6stories
+12ft-82ft

Overall

19083

Males

11450

M55-59

11450

24M→40K

24.0 - 24.9 mi

Top 67%
×1story
+6ft-20ft

Overall

18970

Males

11301

M55-59

11301

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

18035

Males

10835

M55-59

10835

25.2M→Finish

25.2 - 26.2 mi

Top 69%
×2stories
+22ft-21ft

Overall

19471

Males

11564

M55-59

11564

Passing Analysis

Category:
Athletes Passed
1933
Passed By
1990
Net Change
-57
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17850
5K → 10K589112+477#17850#17373
10K → 15K323108+215#17373#17158
15K → 20K196180+16#17158#17142
20K → Half3425+9#17142#17133
Half → 25K166155+11#17133#17122
25K → 30K168374-206#17122#17328
30K → 20M65230-165#17328#17493
20M → 21M78155-77#17493#17570
21M → 35K46107-61#17570#17631
35K → 23M86167-81#17631#17712
23M → 24M67106-39#17712#17751
24M → 40K34110-76#17751#17827
40K → 25.2M3241-9#17827#17836
25.2M → Finish49120-71#17836#17907
TOTALS19331990-57
📊

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