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BOSTON MARATHON 2026

Luis Cheng

Bib: 18578•M

MO

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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
Top 48%
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
24:05
3.11 mi
Rank: #15002
Start → 5K
24:05 | 7:46/mi
10K
48:19
6.21 mi
Rank: #15258 (-256)
5K → 10K
24:14 | 7:48/mi
15K
1:12:03
9.32 mi
Rank: #14791 (+467)
10K → 15K
23:44 | 7:39/mi
20K
1:36:14
12.43 mi
Rank: #14659 (+132)
15K → 20K
24:11 | 7:48/mi
HALF
1:41:46
13.11 mi
Rank: #14851 (-192)
20K → HALF
5:32 | 8:08/mi
25K
2:00:28
15.53 mi
Rank: #14546 (+305)
HALF → 25K
18:42 | 7:43/mi
30K
2:24:53
18.64 mi
Rank: #14135 (+411)
25K → 30K
24:25 | 7:52/mi
20M
2:35:51
20.00 mi
Rank: #14029 (+106)
30K → 20M
10:58 | 8:05/mi
21M
2:44:38
21.00 mi
Rank: #14064 (-35)
20M → 21M
8:47 | 8:47/mi
35K
2:50:34
21.75 mi
Rank: #14044 (+20)
21M → 35K
5:56 | 7:56/mi
23M
3:00:52
23.00 mi
Rank: #14015 (+29)
35K → 23M
10:18 | 8:14/mi
24M
3:09:12
24.00 mi
Rank: #14111 (-96)
23M → 24M
8:20 | 8:20/mi
40K
3:16:24
24.85 mi
Rank: #14148 (-37)
24M → 40K
7:12 | 8:26/mi
25.2M
3:19:47
25.20 mi
Rank: #14256 (-108)
40K → 25.2M
3:23 | 9:49/mi
FINISH
3:28:47
26.22 mi
Rank: #14560 (-304)
25.2M → FINISH
9:00 | 8:50/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:41:46
Pace7:46 /mi
2nd Half
Distance13.11 mi
Time1:47:01
Pace8:10 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:07:5324:057:4624:05
7:46
-
10K
6.21 mi11:32:0748:197:4724:14
7:48
+0:02
15K
9.32 mi11:55:511:12:037:4423:44
7:39
-0:09
20K
12.43 mi12:20:021:36:147:4524:11
7:48
+0:09
HALF
13.11 mi12:25:341:41:467:465:32
8:08
+0:20
25K
15.53 mi12:44:162:00:287:4618:42
7:43
-0:25
30K
18.64 mi13:08:412:24:537:4724:25
7:52
+0:09
20M
20.00 mi13:19:392:35:517:4810:58
8:05
+0:13
21M
21.00 mi13:28:262:44:387:518:47
8:47
+0:42
35K
21.75 mi13:34:222:50:347:515:56
7:56
-0:51
23M
23.00 mi13:44:403:00:527:5210:18
8:14
+0:18
24M
24.00 mi13:53:003:09:127:548:20
8:20
+0:06
40K
24.85 mi14:00:123:16:247:557:12
8:26
+0:06
25.2M
25.20 mi14:03:353:19:477:563:23
9:49
+1:23
FINISH
26.22 mi14:12:353:28:477:599:00
8:50
-0:59

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

7:58 /mi

Slowest Pace

9:49 /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

1:54:56

55% of race

Time at Steady Pace

1:05:29

31% of race

Time at Slower Pace

28:22

14% of race

Average Pace: 7:58 /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 mi11:07:5324:057:4624:05
7:46
#15002
10K
6.21 mi11:32:0748:197:4724:14
7:48
#15258
15K
9.32 mi11:55:511:12:037:4423:44
7:39
#14791
20K
12.43 mi12:20:021:36:147:4524:11
7:48
#14659
HALF
13.11 mi12:25:341:41:467:465:32
8:08
#14851
25K
15.53 mi12:44:162:00:287:4618:42
7:43
#14546
30K
18.64 mi13:08:412:24:537:4724:25
7:52
#14135
20M
20.00 mi13:19:392:35:517:4810:58
8:05
#14029
21M
21.00 mi13:28:262:44:387:518:47
8:47
#14064
35K
21.75 mi13:34:222:50:347:515:56
7:56
#14044
23M
23.00 mi13:44:403:00:527:5210:18
8:14
#14015
24M
24.00 mi13:53:003:09:127:548:20
8:20
#14111
40K
24.85 mi14:00:123:16:247:557:12
8:26
#14148
25.2M
25.20 mi14:03:353:19:477:563:23
9:49
#14256
FINISH
26.22 mi14:12:353:28:477:599:00
8:50
#14560
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 mi15002102581025814001(Top 48%)9806(Top 60%)9806(Top 658%)
10K6.21 mi3.10 mi15258-25610320-6210320-6215627(Top 54%)10468(Top 64%)10468(Top 702%)
15K9.32 mi3.11 mi14791+46710122+19810122+19814001(Top 48%)9806(Top 60%)9806(Top 658%)
20K12.43 mi3.11 mi14659+13210073+4910073+4914376(Top 50%)9893(Top 61%)9893(Top 664%)
HALF13.11 mi0.68 mi14851-19210135-6210135-6217815(Top 61%)11353(Top 69%)11353(Top 761%)
25K15.53 mi2.42 mi14546+30510004+13110004+13113129(Top 45%)9281(Top 57%)9281(Top 622%)
30K18.64 mi3.11 mi14135+4119796+2089796+20812425(Top 43%)8847(Top 54%)8847(Top 593%)
20M20.00 mi1.36 mi14029+1069732+649732+6413300(Top 46%)9155(Top 56%)9155(Top 614%)
21M21.00 mi1.00 mi14064-359715+179715+1714867(Top 51%)9745(Top 60%)9745(Top 654%)
35K21.75 mi0.75 mi14044+209693+229693+2213962(Top 48%)9301(Top 57%)9301(Top 624%)
23M23.00 mi1.25 mi14015+299655+389655+3813985(Top 48%)9238(Top 57%)9238(Top 620%)
24M24.00 mi1.00 mi14111-969679-249679-2415884(Top 55%)9987(Top 61%)9987(Top 670%)
40K24.85 mi0.85 mi14148-379660+199660+1915165(Top 52%)9584(Top 59%)9584(Top 643%)
25.2M25.20 mi0.35 mi14256-1089696-369696-3618593(Top 64%)11159(Top 68%)11159(Top 748%)
FINISH26.22 mi1.02 mi14560-3049805-1099805-10919760(Top 68%)11716(Top 72%)11716(Top 786%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21
+97ft-345ft

Overall

14001

Males

9806

M55-59

9806

5K→10K

3.1 - 6.2 mi

Top 54%
×5
+79ft-138ft

Overall

15627

Males

10468

M55-59

10468

10K→15K

6.2 - 9.3 mi

Top 48%
×3
+67ft-78ft

Overall

14001

Males

9806

M55-59

9806

15K→20K

9.3 - 12.4 mi

Top 50%
×5
+106ft-86ft

Overall

14376

Males

9893

M55-59

9893

20K→HALF

12.4 - 13.1 mi

Top 61%
×2
+19ft-37ft

Overall

17815

Males

11353

M55-59

11353

HALF→25K

13.1 - 15.5 mi

Top 45%
×4
+66ft-88ft

Overall

13129

Males

9281

M55-59

9281

25K→30K

15.5 - 18.6 mi

Top 43%
×9
+181ft-148ft

Overall

12425

Males

8847

M55-59

8847

30K→20M

18.6 - 20.0 mi

Top 46%
×5
+64ft-50ft

Overall

13300

Males

9155

M55-59

9155

20M→21M

20.0 - 21.0 mi

Top 51%
×8
+106ft-24ft

Overall

14867

Males

9745

M55-59

9745

21M→35K

21.0 - 21.8 mi

Top 48%
×7
+17ft-86ft

Overall

13962

Males

9301

M55-59

9301

35K→23M

21.8 - 23.0 mi

Top 48%
×5
+23ft-63ft

Overall

13985

Males

9238

M55-59

9238

23M→24M

23.0 - 24.0 mi

Top 55%
×6
+12ft-82ft

Overall

15884

Males

9987

M55-59

9987

24M→40K

24.0 - 24.9 mi

Top 52%
×1
+6ft-20ft

Overall

15165

Males

9584

M55-59

9584

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1
+13ft-16ft

Overall

18593

Males

11159

M55-59

11159

25.2M→FINISH

25.2 - 26.2 mi

Top 68%
×2
+22ft-21ft

Overall

19760

Males

11716

M55-59

11716

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Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2250
Passed By
1808
Net Change
+442
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15002
5K → 10K185441-256#15002#15258
10K → 15K51548+467#15258#14791
15K → 20K253121+132#14791#14659
20K → HALF6198-192#14659#14851
HALF → 25K32722+305#14851#14546
25K → 30K44938+411#14546#14135
30K → 20M14438+106#14135#14029
20M → 21M87122-35#14029#14064
21M → 35K6040+20#14064#14044
35K → 23M11081+29#14044#14015
23M → 24M39135-96#14015#14111
24M → 40K5491-37#14111#14148
40K → 25.2M9117-108#14148#14256
25.2M → FINISH12316-304#14256#14560
TOTALS22501808+442

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📊

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