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BOSTON MARATHON 2026

Dan Nephin

Bib: 18120•M

PA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Age Group (M55-59)
#0 / 1491
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
24:00
3.11 mi
Rank: #14772
Start → 5K
24:00 | 7:44/mi
10K
47:44
6.21 mi
Rank: #14453 (+319)
5K → 10K
23:44 | 7:39/mi
15K
1:11:39
9.32 mi
Rank: #14429 (+24)
10K → 15K
23:55 | 7:42/mi
20K
1:35:45
12.43 mi
Rank: #14341 (+88)
15K → 20K
24:06 | 7:46/mi
HALF
1:41:01
13.11 mi
Rank: #14364 (-23)
20K → HALF
5:16 | 7:44/mi
25K
2:00:21
15.53 mi
Rank: #14486 (-122)
HALF → 25K
19:20 | 7:59/mi
30K
2:26:52
18.64 mi
Rank: #15002 (-516)
25K → 30K
26:31 | 8:33/mi
20M
2:38:56
20.00 mi
Rank: #15315 (-313)
30K → 20M
12:04 | 8:54/mi
21M
2:52:13
21.00 mi
Rank: #16807 (-1492)
20M → 21M
13:17 | 13:17/mi
35K
2:58:28
21.75 mi
Rank: #16780 (+27)
21M → 35K
6:15 | 8:22/mi
23M
3:12:15
23.00 mi
Rank: #17593 (-813)
35K → 23M
13:47 | 11:01/mi
24M
3:22:45
24.00 mi
Rank: #18060 (-467)
23M → 24M
10:30 | 10:30/mi
40K
3:31:27
24.85 mi
Rank: #18303 (-243)
24M → 40K
8:42 | 10:11/mi
25.2M
3:35:35
25.20 mi
Rank: #18482 (-179)
40K → 25.2M
4:08 | 12:00/mi
FINISH
3:44:12
26.22 mi
Rank: #18458 (+24)
25.2M → FINISH
8:37 | 8:28/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:41:01
Pace7:43 /mi
2nd Half
Distance13.11 mi
Time2:03:11
Pace9:24 /mi
📊Positive Split: 21.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:06:1824:007:4424:00
7:44
-
10K
6.21 mi11:30:0247:447:4123:44
7:39
-0:05
15K
9.32 mi11:53:571:11:397:4223:55
7:42
+0:03
20K
12.43 mi12:18:031:35:457:4324:06
7:46
+0:04
HALF
13.11 mi12:23:191:41:017:435:16
7:44
-0:02
25K
15.53 mi12:42:392:00:217:4519:20
7:59
+0:15
30K
18.64 mi13:09:102:26:527:5326:31
8:33
+0:34
20M
20.00 mi13:21:142:38:567:5712:04
8:54
+0:21
21M
21.00 mi13:34:312:52:138:1313:17
13:17
+4:23
35K
21.75 mi13:40:462:58:288:136:15
8:22
-4:55
23M
23.00 mi13:54:333:12:158:2213:47
11:01
+2:39
24M
24.00 mi14:05:033:22:458:2710:30
10:30
-0:31
40K
24.85 mi14:13:453:31:278:318:42
10:11
-0:19
25.2M
25.20 mi14:17:533:35:358:344:08
12:00
+1:49
FINISH
26.22 mi14:26:303:44:128:348:37
8:28
-3:32

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

7:39 /mi

Average Pace

8:33 /mi

Slowest Pace

13:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

2:53:48

78% of race

Time at Slower Pace

50:24

22% of race

Average Pace: 8:33 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:06:1824:007:4424:00
7:44
#14772
10K
6.21 mi11:30:0247:447:4123:44
7:39
#14453
15K
9.32 mi11:53:571:11:397:4223:55
7:42
#14429
20K
12.43 mi12:18:031:35:457:4324:06
7:46
#14341
HALF
13.11 mi12:23:191:41:017:435:16
7:44
#14364
25K
15.53 mi12:42:392:00:217:4519:20
7:59
#14486
30K
18.64 mi13:09:102:26:527:5326:31
8:33
#15002
20M
20.00 mi13:21:142:38:567:5712:04
8:54
#15315
21M
21.00 mi13:34:312:52:138:1313:17
13:17
#16807
35K
21.75 mi13:40:462:58:288:136:15
8:22
#16780
23M
23.00 mi13:54:333:12:158:2213:47
11:01
#17593
24M
24.00 mi14:05:033:22:458:2710:30
10:30
#18060
40K
24.85 mi14:13:453:31:278:318:42
10:11
#18303
25.2M
25.20 mi14:17:533:35:358:344:08
12:00
#18482
FINISH
26.22 mi14:26:303:44:128:348:37
8:28
#18458
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi14772101841018414521(Top 50%)10007(Top 61%)10007(Top 671%)
10K6.21 mi3.10 mi14453+31910033+15110033+15114222(Top 49%)9922(Top 61%)9922(Top 665%)
15K9.32 mi3.11 mi14429+249993+409993+4014521(Top 50%)10007(Top 61%)10007(Top 671%)
20K12.43 mi3.11 mi14341+889949+449949+4414191(Top 49%)9821(Top 60%)9821(Top 659%)
HALF13.11 mi0.68 mi14364-239955-69955-614927(Top 51%)10210(Top 62%)10210(Top 685%)
25K15.53 mi2.42 mi14486-1229978-239978-2315195(Top 52%)10173(Top 62%)10173(Top 682%)
30K18.64 mi3.11 mi15002-51610144-16610144-16617103(Top 59%)10881(Top 67%)10881(Top 730%)
20M20.00 mi1.36 mi15315-31310240-9610240-9618373(Top 63%)11338(Top 69%)11338(Top 760%)
21M21.00 mi1.00 mi16807-149210850-61010850-61026668(Top 92%)15195(Top 93%)15195(Top 1019%)
35K21.75 mi0.75 mi16780+2710825+2510825+2516748(Top 58%)10522(Top 64%)10522(Top 706%)
23M23.00 mi1.25 mi17593-81311135-31011135-31024516(Top 84%)14107(Top 86%)14107(Top 946%)
24M24.00 mi1.00 mi18060-46711318-18311318-18324091(Top 83%)13875(Top 85%)13875(Top 931%)
40K24.85 mi0.85 mi18303-24311414-9611414-9622381(Top 77%)13002(Top 80%)13002(Top 872%)
25.2M25.20 mi0.35 mi18482-17911491-7711491-7724390(Top 84%)13956(Top 85%)13956(Top 936%)
FINISH26.22 mi1.02 mi18458+2411458+3311458+3317903(Top 62%)10843(Top 66%)10843(Top 727%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21
+97ft-345ft

Overall

14521

Males

10007

M55-59

10007

5K→10K

3.1 - 6.2 mi

Top 49%
×5
+79ft-138ft

Overall

14222

Males

9922

M55-59

9922

10K→15K

6.2 - 9.3 mi

Top 50%
×3
+67ft-78ft

Overall

14521

Males

10007

M55-59

10007

15K→20K

9.3 - 12.4 mi

Top 49%
×5
+106ft-86ft

Overall

14191

Males

9821

M55-59

9821

20K→HALF

12.4 - 13.1 mi

Top 51%
×2
+19ft-37ft

Overall

14927

Males

10210

M55-59

10210

HALF→25K

13.1 - 15.5 mi

Top 52%
×4
+66ft-88ft

Overall

15195

Males

10173

M55-59

10173

25K→30K

15.5 - 18.6 mi

Top 59%
×9
+181ft-148ft

Overall

17103

Males

10881

M55-59

10881

30K→20M

18.6 - 20.0 mi

Top 63%
×5
+64ft-50ft

Overall

18373

Males

11338

M55-59

11338

20M→21M

20.0 - 21.0 mi

Top 92%
×8
+106ft-24ft

Overall

26668

Males

15195

M55-59

15195

21M→35K

21.0 - 21.8 mi

Top 58%
×7
+17ft-86ft

Overall

16748

Males

10522

M55-59

10522

35K→23M

21.8 - 23.0 mi

Top 84%
×5
+23ft-63ft

Overall

24516

Males

14107

M55-59

14107

23M→24M

23.0 - 24.0 mi

Top 83%
×6
+12ft-82ft

Overall

24091

Males

13875

M55-59

13875

24M→40K

24.0 - 24.9 mi

Top 77%
×1
+6ft-20ft

Overall

22381

Males

13002

M55-59

13002

40K→25.2M

24.9 - 25.2 mi

Top 84%
×1
+13ft-16ft

Overall

24390

Males

13956

M55-59

13956

25.2M→FINISH

25.2 - 26.2 mi

Top 62%
×2
+22ft-21ft

Overall

17903

Males

10843

M55-59

10843

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1357*
Passed By
2204
Net Change
-3686
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14772
5K → 10K485*166+319#14772#14453
10K → 15K224*200+24#14453#14429
15K → 20K201*113+88#14429#14341
20K → HALF1841-23#14341#14364
HALF → 25K109200-122#14364#14486
25K → 30K83200-516#14486#15002
30K → 20M37200-313#15002#15315
20M → 21M6200-1492#15315#16807
21M → 35K7043+27#16807#16780
35K → 23M10200-813#16780#17593
23M → 24M9200-467#17593#18060
24M → 40K19200-243#18060#18303
40K → 25.2M2181-179#18303#18482
25.2M → FINISH8460+24#18482#18458
TOTALS1357*2204-3686

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing