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BOSTON MARATHON 2026

Paul Shifflett

Bib: 16521•M

VA

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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
24:39
3.11 mi
Rank: #16429
Start → 5K
24:39 | 7:57/mi
10K
49:15
6.21 mi
Rank: #16516 (-87)
5K → 10K
24:36 | 7:56/mi
15K
1:14:00
9.32 mi
Rank: #16607 (-91)
10K → 15K
24:45 | 7:58/mi
20K
1:38:39
12.43 mi
Rank: #16329 (+278)
15K → 20K
24:39 | 7:57/mi
HALF
1:43:59
13.11 mi
Rank: #16294 (+35)
20K → HALF
5:20 | 7:50/mi
25K
2:03:47
15.53 mi
Rank: #16325 (-31)
HALF → 25K
19:48 | 8:10/mi
30K
2:29:54
18.64 mi
Rank: #16287 (+38)
25K → 30K
26:07 | 8:25/mi
20M
2:41:37
20.00 mi
Rank: #16333 (-46)
30K → 20M
11:43 | 8:38/mi
21M
2:50:43
21.00 mi
Rank: #16308 (+25)
20M → 21M
9:06 | 9:06/mi
35K
2:56:43
21.75 mi
Rank: #16227 (+81)
21M → 35K
6:00 | 8:02/mi
23M
3:07:41
23.00 mi
Rank: #16268 (-41)
35K → 23M
10:58 | 8:46/mi
24M
3:16:22
24.00 mi
Rank: #16331 (-63)
23M → 24M
8:41 | 8:41/mi
40K
3:24:00
24.85 mi
Rank: #16376 (-45)
24M → 40K
7:38 | 8:56/mi
25.2M
3:27:17
25.20 mi
Rank: #16395 (-19)
40K → 25.2M
3:17 | 9:32/mi
FINISH
3:35:47
26.22 mi
Rank: #16422 (-27)
25.2M → FINISH
8:30 | 8:21/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:43:59
Pace7:56 /mi
2nd Half
Distance13.11 mi
Time1:51:48
Pace8:32 /mi
📊Positive Split: 7.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:06:2124:397:5724:39
7:57
-
10K
6.21 mi11:30:5749:157:5624:36
7:56
-0:01
15K
9.32 mi11:55:421:14:007:5724:45
7:58
+0:02
20K
12.43 mi12:20:211:38:397:5724:39
7:57
-0:01
HALF
13.11 mi12:25:411:43:597:565:20
7:50
-0:07
25K
15.53 mi12:45:292:03:477:5919:48
8:10
+0:20
30K
18.64 mi13:11:362:29:548:0326:07
8:25
+0:15
20M
20.00 mi13:23:192:41:378:0511:43
8:38
+0:13
21M
21.00 mi13:32:252:50:438:089:06
9:06
+0:28
35K
21.75 mi13:38:252:56:438:086:00
8:02
-1:04
23M
23.00 mi13:49:233:07:418:1010:58
8:46
+0:44
24M
24.00 mi13:58:043:16:228:118:41
8:41
-0:05
40K
24.85 mi14:05:423:24:008:137:38
8:56
+0:15
25.2M
25.20 mi14:08:593:27:178:143:17
9:32
+0:36
FINISH
26.22 mi14:17:293:35:478:158:30
8:21
-1:11

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

7:50 /mi

Average Pace

8:14 /mi

Slowest Pace

9:32 /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

1:49:59

51% of race

Time at Steady Pace

54:25

25% of race

Time at Slower Pace

51:23

24% of race

Average Pace: 8:14 /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 mi11:06:2124:397:5724:39
7:57
#16429
10K
6.21 mi11:30:5749:157:5624:36
7:56
#16516
15K
9.32 mi11:55:421:14:007:5724:45
7:58
#16607
20K
12.43 mi12:20:211:38:397:5724:39
7:57
#16329
HALF
13.11 mi12:25:411:43:597:565:20
7:50
#16294
25K
15.53 mi12:45:292:03:477:5919:48
8:10
#16325
30K
18.64 mi13:11:362:29:548:0326:07
8:25
#16287
20M
20.00 mi13:23:192:41:378:0511:43
8:38
#16333
21M
21.00 mi13:32:252:50:438:089:06
9:06
#16308
35K
21.75 mi13:38:252:56:438:086:00
8:02
#16227
23M
23.00 mi13:49:233:07:418:1010:58
8:46
#16268
24M
24.00 mi13:58:043:16:228:118:41
8:41
#16331
40K
24.85 mi14:05:423:24:008:137:38
8:56
#16376
25.2M
25.20 mi14:08:593:27:178:143:17
9:32
#16395
FINISH
26.22 mi14:17:293:35:478:158:30
8:21
#16422
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 mi16429107821078216724(Top 58%)10911(Top 67%)10911(Top 732%)
10K6.21 mi3.10 mi16516-8710801-1910801-1916611(Top 57%)10860(Top 66%)10860(Top 728%)
15K9.32 mi3.11 mi16607-9110847-4610847-4616724(Top 58%)10911(Top 67%)10911(Top 732%)
20K12.43 mi3.11 mi16329+27810720+12710720+12715614(Top 54%)10398(Top 64%)10398(Top 697%)
HALF13.11 mi0.68 mi16294+3510694+2610694+2615709(Top 54%)10491(Top 64%)10491(Top 704%)
25K15.53 mi2.42 mi16325-3110701-710701-716563(Top 57%)10745(Top 66%)10745(Top 721%)
30K18.64 mi3.11 mi16287+3810643+5810643+5816296(Top 56%)10548(Top 65%)10548(Top 707%)
20M20.00 mi1.36 mi16333-4610655-1210655-1216924(Top 58%)10702(Top 65%)10702(Top 718%)
21M21.00 mi1.00 mi16308+2510624+3110624+3116631(Top 57%)10532(Top 64%)10532(Top 706%)
35K21.75 mi0.75 mi16227+8110570+5410570+5414612(Top 50%)9603(Top 59%)9603(Top 644%)
23M23.00 mi1.25 mi16268-4110572-210572-217237(Top 59%)10619(Top 65%)10619(Top 712%)
24M24.00 mi1.00 mi16331-6310575-310575-317896(Top 62%)10892(Top 67%)10892(Top 731%)
40K24.85 mi0.85 mi16376-4510582-710582-718014(Top 62%)10899(Top 67%)10899(Top 731%)
25.2M25.20 mi0.35 mi16395-1910578+410578+417357(Top 60%)10581(Top 65%)10581(Top 710%)
FINISH26.22 mi1.02 mi16422-2710568+1010568+1017259(Top 59%)10547(Top 65%)10547(Top 707%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 58%
×21
+97ft-345ft

Overall

16724

Males

10911

M55-59

10911

5K→10K

3.1 - 6.2 mi

Top 57%
×5
+79ft-138ft

Overall

16611

Males

10860

M55-59

10860

10K→15K

6.2 - 9.3 mi

Top 58%
×3
+67ft-78ft

Overall

16724

Males

10911

M55-59

10911

15K→20K

9.3 - 12.4 mi

Top 54%
×5
+106ft-86ft

Overall

15614

Males

10398

M55-59

10398

20K→HALF

12.4 - 13.1 mi

Top 54%
×2
+19ft-37ft

Overall

15709

Males

10491

M55-59

10491

HALF→25K

13.1 - 15.5 mi

Top 57%
×4
+66ft-88ft

Overall

16563

Males

10745

M55-59

10745

25K→30K

15.5 - 18.6 mi

Top 56%
×9
+181ft-148ft

Overall

16296

Males

10548

M55-59

10548

30K→20M

18.6 - 20.0 mi

Top 58%
×5
+64ft-50ft

Overall

16924

Males

10702

M55-59

10702

20M→21M

20.0 - 21.0 mi

Top 57%
×8
+106ft-24ft

Overall

16631

Males

10532

M55-59

10532

21M→35K

21.0 - 21.8 mi

Top 50%
×7
+17ft-86ft

Overall

14612

Males

9603

M55-59

9603

35K→23M

21.8 - 23.0 mi

Top 59%
×5
+23ft-63ft

Overall

17237

Males

10619

M55-59

10619

23M→24M

23.0 - 24.0 mi

Top 62%
×6
+12ft-82ft

Overall

17896

Males

10892

M55-59

10892

24M→40K

24.0 - 24.9 mi

Top 62%
×1
+6ft-20ft

Overall

18014

Males

10899

M55-59

10899

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1
+13ft-16ft

Overall

17357

Males

10581

M55-59

10581

25.2M→FINISH

25.2 - 26.2 mi

Top 59%
×2
+22ft-21ft

Overall

17259

Males

10547

M55-59

10547

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1695
Passed By
1688
Net Change
+7
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16429
5K → 10K238325-87#16429#16516
10K → 15K167258-91#16516#16607
15K → 20K33456+278#16607#16329
20K → HALF5116+35#16329#16294
HALF → 25K143174-31#16294#16325
25K → 30K212174+38#16325#16287
30K → 20M73119-46#16287#16333
20M → 21M10883+25#16333#16308
21M → 35K10221+81#16308#16227
35K → 23M82123-41#16227#16268
23M → 24M52115-63#16268#16331
24M → 40K56101-45#16331#16376
40K → 25.2M2544-19#16376#16395
25.2M → FINISH5279-27#16395#16422
TOTALS16951688+7
📊

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