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BOSTON MARATHON 2025

Michael Nelson

Bib: 11300•M

MI

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 50%
Gender (Male)
#0 / 16105
Masters (Masters Men)
#0 / 10463
Division (M55-59)
#0 / 1648
Top 42%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:30/mi
23:19
↑ 97↓ 3451.5%
10K· 6.21 mi
7:42/mi
47:13
↑ 79↓ 1380.4%
15K· 9.32 mi
8:09/mi
1:12:32
↑ 67↓ 78
20K· 12.43 mi
7:52/mi
1:36:57
↑ 106↓ 860.1%
Half· 13.11 mi
7:48/mi
1:42:16
↑ 19↓ 370.5%
25K· 15.53 mi
8:00/mi
2:01:40
↑ 66↓ 880.2%
30K· 18.64 mi
8:21/mi
2:27:37
↑ 181↓ 1480.2%
20M
9:27/mi
2:40:28
↑ 64↓ 500.2%
21M
8:46/mi
2:49:14
↑ 106↓ 241.6%
35K· 21.75 mi
8:15/mi
2:55:24
↑ 17↓ 861.7%
23M
8:28/mi
3:06:00
↑ 23↓ 630.6%
24M
8:26/mi
3:14:26
↓ 821.3%
40K· 24.85 mi
8:26/mi
3:21:39
↓ 200.3%
25.2M
9:17/mi
3:24:51
↑ 13↓ 160.2%
Finish· 26.22 mi
8:15/mi
3:33:15
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:16
Pace7:48 /mi
2nd Half
Distance13.11 mi
Time1:50:59
Pace8:28 /mi
📊Positive Split: 8.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5823:197:3023:19
7:30
-
10K
6.21 mi11:13:5247:137:3623:54
7:42
+0:12
15K
9.32 mi11:39:111:12:327:4725:19
8:09
+0:27
20K
12.43 mi12:03:361:36:577:4824:25
7:52
-0:17
Half
13.11 mi12:08:551:42:167:485:19
7:48
-0:04
25K
15.53 mi12:28:192:01:407:5019:24
8:00
+0:12
30K
18.64 mi12:54:162:27:377:5525:57
8:21
+0:21
20M
20.00 mi13:07:072:40:288:0112:51
9:27
+1:06
21M
21.00 mi13:15:532:49:148:048:46
8:46
-0:41
35K
21.75 mi13:22:032:55:248:046:10
8:15
-0:31
23M
23.00 mi13:32:393:06:008:0510:36
8:28
+0:13
24M
24.00 mi13:41:053:14:268:068:26
8:26
-0:02
40K
24.85 mi13:48:183:21:398:077:13
8:26
0:00
25.2M
25.20 mi13:51:303:24:518:083:12
9:17
+0:51
Finish
26.22 mi13:59:543:33:158:088:24
8:15
-1:02

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

7:30 /mi

Average Pace

8:08 /mi

Slowest Pace

9:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:57

36% of race

Time at Steady Pace

1:51:29

52% of race

Time at Slower Pace

24:49

12% of race

Average Pace: 8:08 /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 mi10:49:5823:197:3023:19
7:30
#12291
10K
6.21 mi11:13:5247:137:3623:54
7:42
#13025
15K
9.32 mi11:39:111:12:327:4725:19
8:09
#14470
20K
12.43 mi12:03:361:36:577:4824:25
7:52
#14254
Half
13.11 mi12:08:551:42:167:485:19
7:48
#14251
25K
15.53 mi12:28:192:01:407:5019:24
8:00
#14150
30K
18.64 mi12:54:162:27:377:5525:57
8:21
#14031
20M
20.00 mi13:07:072:40:288:0112:51
9:27
#14516
21M
21.00 mi13:15:532:49:148:048:46
8:46
#14340
35K
21.75 mi13:22:032:55:248:046:10
8:15
#14320
23M
23.00 mi13:32:393:06:008:0510:36
8:28
#14232
24M
24.00 mi13:41:053:14:268:068:26
8:26
#14218
40K
24.85 mi13:48:183:21:398:077:13
8:26
#14139
25.2M
25.20 mi13:51:303:24:518:083:12
9:17
#14116
Finish
26.22 mi13:59:543:33:158:088:24
8:15
#14107
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi122919304930417057(Top 60%)11238(Top 70%)11238(Top 682%)
10K6.21 mi3.10 mi13025-7349636-3329636-33213818(Top 49%)9930(Top 62%)9930(Top 603%)
15K9.32 mi3.11 mi14470-144510188-55210188-55217057(Top 60%)11238(Top 70%)11238(Top 682%)
20K12.43 mi3.11 mi14254+21610062+12610062+12613750(Top 48%)9758(Top 61%)9758(Top 592%)
Half13.11 mi0.68 mi14251+310055+710055+714166(Top 50%)9978(Top 62%)9978(Top 605%)
25K15.53 mi2.42 mi14150+1019980+759980+7513896(Top 49%)9704(Top 60%)9704(Top 589%)
30K18.64 mi3.11 mi14031+1199867+1139867+11313832(Top 49%)9523(Top 59%)9523(Top 578%)
20M20.00 mi1.36 mi14516-48510051-18410051-18418949(Top 67%)11659(Top 72%)11659(Top 707%)
21M21.00 mi1.00 mi14340+1769955+969955+9612077(Top 43%)8412(Top 52%)8412(Top 510%)
35K21.75 mi0.75 mi14320+209926+299926+2913868(Top 49%)9219(Top 57%)9219(Top 559%)
23M23.00 mi1.25 mi14232+889842+849842+8413089(Top 46%)8740(Top 54%)8740(Top 530%)
24M24.00 mi1.00 mi14218+149807+359807+3514082(Top 50%)9181(Top 57%)9181(Top 557%)
40K24.85 mi0.85 mi14139+799741+669741+6613026(Top 46%)8541(Top 53%)8541(Top 518%)
25.2M25.20 mi0.35 mi14116+239721+209721+2013312(Top 47%)8618(Top 54%)8618(Top 523%)
Finish26.22 mi1.02 mi14107+99695+269695+2614529(Top 51%)9270(Top 58%)9270(Top 563%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21story building
+97ft-345ft

Overall

17057

Males

11238

M55-59

11238

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13818

Males

9930

M55-59

9930

10K→15K

6.2 - 9.3 mi

Top 60%
×3story building
+67ft-78ft

Overall

17057

Males

11238

M55-59

11238

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

13750

Males

9758

M55-59

9758

20K→Half

12.4 - 13.1 mi

Top 50%
×2story building
+19ft-37ft

Overall

14166

Males

9978

M55-59

9978

Half→25K

13.1 - 15.5 mi

Top 49%
×4story building
+66ft-88ft

Overall

13896

Males

9704

M55-59

9704

25K→30K

15.5 - 18.6 mi

Top 49%
×9story building
+181ft-148ft

Overall

13832

Males

9523

M55-59

9523

30K→20M

18.6 - 20.0 mi

Top 67%
×5story building
+64ft-50ft

Overall

18949

Males

11659

M55-59

11659

20M→21M

20.0 - 21.0 mi

Top 43%
×8story building
+106ft-24ft

Overall

12077

Males

8412

M55-59

8412

21M→35K

21.0 - 21.8 mi

Top 49%
×7story building
+17ft-86ft

Overall

13868

Males

9219

M55-59

9219

35K→23M

21.8 - 23.0 mi

Top 46%
×5story building
+23ft-63ft

Overall

13089

Males

8740

M55-59

8740

23M→24M

23.0 - 24.0 mi

Top 50%
×6story building
+12ft-82ft

Overall

14082

Males

9181

M55-59

9181

24M→40K

24.0 - 24.9 mi

Top 46%
×1story
+6ft-20ft

Overall

13026

Males

8541

M55-59

8541

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13312

Males

8618

M55-59

8618

25.2M→Finish

25.2 - 26.2 mi

Top 51%
×2story building
+22ft-21ft

Overall

14529

Males

9270

M55-59

9270

Passing Analysis

Category:
Athletes Passed
1730
Passed By
3546
Net Change
-1816
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12291
5K → 10K62796-734#12291#13025
10K → 15K221467-1445#13025#14470
15K → 20K31094+216#14470#14254
20K → Half3734+3#14254#14251
Half → 25K19897+101#14251#14150
25K → 30K316197+119#14150#14031
30K → 20M38523-485#14031#14516
20M → 21M20428+176#14516#14340
21M → 35K7050+20#14340#14320
35K → 23M15668+88#14320#14232
23M → 24M8672+14#14232#14218
24M → 40K11031+79#14218#14139
40K → 25.2M4623+23#14139#14116
25.2M → Finish7566+9#14116#14107
TOTALS17303546-1816
📊

Passing Visuals

Category:
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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