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BOSTON MARATHON 2026

Nobu Shan

Bib: 23052•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 (M60-64)
#0 / 1514
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
26:35
3.11 mi
Rank: #20382
Start → 5K
26:35 | 8:34/mi
10K
53:12
6.21 mi
Rank: #20508 (-126)
5K → 10K
26:37 | 8:35/mi
15K
1:19:35
9.32 mi
Rank: #20338 (+170)
10K → 15K
26:23 | 8:30/mi
20K
1:46:27
12.43 mi
Rank: #20269 (+69)
15K → 20K
26:52 | 8:39/mi
HALF
1:52:17
13.11 mi
Rank: #20284 (-15)
20K → HALF
5:50 | 8:34/mi
25K
2:13:22
15.53 mi
Rank: #20205 (+79)
HALF → 25K
21:05 | 8:42/mi
30K
2:41:35
18.64 mi
Rank: #20144 (+61)
25K → 30K
28:13 | 9:05/mi
20M
2:54:09
20.00 mi
Rank: #20147 (-3)
30K → 20M
12:34 | 9:16/mi
21M
3:03:33
21.00 mi
Rank: #20026 (+121)
20M → 21M
9:24 | 9:24/mi
35K
3:10:02
21.75 mi
Rank: #19980 (+46)
21M → 35K
6:29 | 8:40/mi
23M
3:21:23
23.00 mi
Rank: #19911 (+69)
35K → 23M
11:21 | 9:05/mi
24M
3:30:06
24.00 mi
Rank: #19826 (+85)
23M → 24M
8:43 | 8:43/mi
40K
3:37:29
24.85 mi
Rank: #19705 (+121)
24M → 40K
7:23 | 8:39/mi
25.2M
3:40:42
25.20 mi
Rank: #19652 (+53)
40K → 25.2M
3:13 | 9:20/mi
FINISH
3:49:43
26.22 mi
Rank: #19683 (-31)
25.2M → FINISH
9:01 | 8:51/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:52:17
Pace8:34 /mi
2nd Half
Distance13.11 mi
Time1:57:26
Pace8:58 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:1226:358:3426:35
8:34
-
10K
6.21 mi11:55:4953:128:3426:37
8:35
+0:01
15K
9.32 mi12:22:121:19:358:3326:23
8:30
-0:05
20K
12.43 mi12:49:041:46:278:3426:52
8:39
+0:09
HALF
13.11 mi12:54:541:52:178:345:50
8:34
-0:05
25K
15.53 mi13:15:592:13:228:3621:05
8:42
+0:08
30K
18.64 mi13:44:122:41:358:4128:13
9:05
+0:23
20M
20.00 mi13:56:462:54:098:4312:34
9:16
+0:11
21M
21.00 mi14:06:103:03:338:459:24
9:24
+0:08
35K
21.75 mi14:12:393:10:028:456:29
8:40
-0:44
23M
23.00 mi14:24:003:21:238:4611:21
9:05
+0:25
24M
24.00 mi14:32:433:30:068:468:43
8:43
-0:22
40K
24.85 mi14:40:063:37:298:467:23
8:39
-0:04
25.2M
25.20 mi14:43:193:40:428:463:13
9:20
+0:41
FINISH
26.22 mi14:52:203:49:438:479:01
8:51
-0:29

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

8:30 /mi

Average Pace

8:46 /mi

Slowest Pace

9:24 /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

3:40:19

96% of race

Time at Steady Pace

9:24

4% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:46 /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 mi11:29:1226:358:3426:35
8:34
#20382
10K
6.21 mi11:55:4953:128:3426:37
8:35
#20508
15K
9.32 mi12:22:121:19:358:3326:23
8:30
#20338
20K
12.43 mi12:49:041:46:278:3426:52
8:39
#20269
HALF
13.11 mi12:54:541:52:178:345:50
8:34
#20284
25K
15.53 mi13:15:592:13:228:3621:05
8:42
#20205
30K
18.64 mi13:44:122:41:358:4128:13
9:05
#20144
20M
20.00 mi13:56:462:54:098:4312:34
9:16
#20147
21M
21.00 mi14:06:103:03:338:459:24
9:24
#20026
35K
21.75 mi14:12:393:10:028:456:29
8:40
#19980
23M
23.00 mi14:24:003:21:238:4611:21
9:05
#19911
24M
24.00 mi14:32:433:30:068:468:43
8:43
#19826
40K
24.85 mi14:40:063:37:298:467:23
8:39
#19705
25.2M
25.20 mi14:43:193:40:428:463:13
9:20
#19652
FINISH
26.22 mi14:52:203:49:438:479:01
8:51
#19683
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi20382124481244820093(Top 69%)12361(Top 76%)12361(Top 816%)
10K6.21 mi3.10 mi20508-12612529-8112529-8120710(Top 71%)12645(Top 77%)12645(Top 835%)
15K9.32 mi3.11 mi20338+17012468+6112468+6120093(Top 69%)12361(Top 76%)12361(Top 816%)
20K12.43 mi3.11 mi20269+6912415+5312415+5320142(Top 69%)12352(Top 76%)12352(Top 816%)
HALF13.11 mi0.68 mi20284-1512420-512420-520542(Top 71%)12562(Top 77%)12562(Top 830%)
25K15.53 mi2.42 mi20205+7912375+4512375+4519672(Top 68%)12108(Top 74%)12108(Top 800%)
30K18.64 mi3.11 mi20144+6112339+3612339+3619975(Top 69%)12170(Top 74%)12170(Top 804%)
20M20.00 mi1.36 mi20147-312320+1912320+1920049(Top 69%)12132(Top 74%)12132(Top 801%)
21M21.00 mi1.00 mi20026+12112249+7112249+7118064(Top 62%)11170(Top 68%)11170(Top 738%)
35K21.75 mi0.75 mi19980+4612219+3012219+3018454(Top 64%)11259(Top 69%)11259(Top 744%)
23M23.00 mi1.25 mi19911+6912163+5612163+5618826(Top 65%)11373(Top 70%)11373(Top 751%)
24M24.00 mi1.00 mi19826+8512094+6912094+6918101(Top 62%)11006(Top 67%)11006(Top 727%)
40K24.85 mi0.85 mi19705+12112039+5512039+5516469(Top 57%)10180(Top 62%)10180(Top 672%)
25.2M25.20 mi0.35 mi19652+5312008+3112008+3116459(Top 57%)10206(Top 62%)10206(Top 674%)
FINISH26.22 mi1.02 mi19683-3112009-112009-119843(Top 68%)11766(Top 72%)11766(Top 777%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21
+97ft-345ft

Overall

20093

Males

12361

M60-64

12361

5K→10K

3.1 - 6.2 mi

Top 71%
×5
+79ft-138ft

Overall

20710

Males

12645

M60-64

12645

10K→15K

6.2 - 9.3 mi

Top 69%
×3
+67ft-78ft

Overall

20093

Males

12361

M60-64

12361

15K→20K

9.3 - 12.4 mi

Top 69%
×5
+106ft-86ft

Overall

20142

Males

12352

M60-64

12352

20K→HALF

12.4 - 13.1 mi

Top 71%
×2
+19ft-37ft

Overall

20542

Males

12562

M60-64

12562

HALF→25K

13.1 - 15.5 mi

Top 68%
×4
+66ft-88ft

Overall

19672

Males

12108

M60-64

12108

25K→30K

15.5 - 18.6 mi

Top 69%
×9
+181ft-148ft

Overall

19975

Males

12170

M60-64

12170

30K→20M

18.6 - 20.0 mi

Top 69%
×5
+64ft-50ft

Overall

20049

Males

12132

M60-64

12132

20M→21M

20.0 - 21.0 mi

Top 62%
×8
+106ft-24ft

Overall

18064

Males

11170

M60-64

11170

21M→35K

21.0 - 21.8 mi

Top 64%
×7
+17ft-86ft

Overall

18454

Males

11259

M60-64

11259

35K→23M

21.8 - 23.0 mi

Top 65%
×5
+23ft-63ft

Overall

18826

Males

11373

M60-64

11373

23M→24M

23.0 - 24.0 mi

Top 62%
×6
+12ft-82ft

Overall

18101

Males

11006

M60-64

11006

24M→40K

24.0 - 24.9 mi

Top 57%
×1
+6ft-20ft

Overall

16469

Males

10180

M60-64

10180

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1
+13ft-16ft

Overall

16459

Males

10206

M60-64

10206

25.2M→FINISH

25.2 - 26.2 mi

Top 68%
×2
+22ft-21ft

Overall

19843

Males

11766

M60-64

11766

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1873
Passed By
1174
Net Change
+699
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20382
5K → 10K214340-126#20382#20508
10K → 15K295125+170#20508#20338
15K → 20K194125+69#20338#20269
20K → HALF3247-15#20269#20284
HALF → 25K15576+79#20284#20205
25K → 30K214153+61#20205#20144
30K → 20M8891-3#20144#20147
20M → 21M15029+121#20147#20026
21M → 35K6923+46#20026#19980
35K → 23M11849+69#19980#19911
23M → 24M10823+85#19911#19826
24M → 40K1287+121#19826#19705
40K → 25.2M585+53#19705#19652
25.2M → FINISH5081-31#19652#19683
TOTALS18731174+699
📊

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