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BOSTON MARATHON 2026

Chi Cheung Lam

Bib: 26082β€’M

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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 (M70-74)
#0 / 281
Race Day Weather
51Β°/41Β°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
32:07
3.11 mi
Rank: #26821
Start β†’ 5K
32:07 | 10:21/mi
10K
1:03:54
6.21 mi
Rank: #26584 (+237)
5K β†’ 10K
31:47 | 10:14/mi
15K
1:37:15
9.32 mi
Rank: #26770 (-186)
10K β†’ 15K
33:21 | 10:45/mi
20K
2:09:53
12.43 mi
Rank: #26584 (+186)
15K β†’ 20K
32:38 | 10:31/mi
HALF
2:20:31
13.11 mi
Rank: #27073 (-489)
20K β†’ HALF
10:38 | 15:36/mi
25K
2:48:54
15.53 mi
Rank: #27117 (-44)
HALF β†’ 25K
28:23 | 11:43/mi
30K
3:28:52
18.64 mi
Rank: #27262 (-145)
25K β†’ 30K
39:58 | 12:52/mi
20M
3:46:37
20.00 mi
Rank: #27311 (-49)
30K β†’ 20M
17:45 | 13:05/mi
21M
4:01:42
21.00 mi
Rank: #27412 (-101)
20M β†’ 21M
15:05 | 15:05/mi
35K
4:09:48
21.75 mi
Rank: #27345 (+67)
21M β†’ 35K
8:06 | 10:50/mi
23M
4:23:23
23.00 mi
Rank: #27215 (+130)
35K β†’ 23M
13:35 | 10:52/mi
24M
4:33:03
24.00 mi
Rank: #27085 (+130)
23M β†’ 24M
9:40 | 9:40/mi
40K
4:42:18
24.85 mi
Rank: #26994 (+91)
24M β†’ 40K
9:15 | 10:50/mi
25.2M
4:45:47
25.20 mi
Rank: #26935 (+59)
40K β†’ 25.2M
3:29 | 10:07/mi
FINISH
4:55:35
26.22 mi
Rank: #26844 (+91)
25.2M β†’ FINISH
9:48 | 9:38/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:20:31
Pace10:44 /mi
2nd Half
Distance13.11 mi
Time2:35:04
Pace11:50 /mi
πŸ“ŠPositive Split: 10.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:39:3232:0710:2132:07
10:21
-
10K
6.21 mi12:11:191:03:5410:1831:47
10:14
-0:07
15K
9.32 mi12:44:401:37:1510:2733:21
10:45
+0:31
20K
12.43 mi13:17:182:09:5310:2832:38
10:31
-0:14
HALF
13.11 mi13:27:562:20:3110:4410:38
15:36
+5:05
25K
15.53 mi13:56:192:48:5410:5328:23
11:43
-3:53
30K
18.64 mi14:36:173:28:5211:1339:58
12:52
+1:09
20M
20.00 mi14:54:023:46:3711:2017:45
13:05
+0:13
21M
21.00 mi15:09:074:01:4211:3115:05
15:05
+2:00
35K
21.75 mi15:17:134:09:4811:308:06
10:50
-4:15
23M
23.00 mi15:30:484:23:2311:2813:35
10:52
+0:02
24M
24.00 mi15:40:284:33:0311:239:40
9:40
-1:12
40K
24.85 mi15:49:434:42:1811:229:15
10:50
+1:10
25.2M
25.20 mi15:53:124:45:4711:213:29
10:07
-0:43
FINISH
26.22 mi16:03:004:55:3511:179:48
9:38
-0:29

Checkpoint Splits Visualizations

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

πŸ“ˆPace 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

9:38 /mi

Average Pace

11:17 /mi

Slowest Pace

15:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

19:28

7% of race

Time at Steady Pace

3:12:41

65% of race

Time at Slower Pace

1:23:26

28% of race

Average Pace: 11:16 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi11:39:3232:0710:2132:07
10:21
#26821
10K
6.21 mi12:11:191:03:5410:1831:47
10:14
#26584
15K
9.32 mi12:44:401:37:1510:2733:21
10:45
#26770
20K
12.43 mi13:17:182:09:5310:2832:38
10:31
#26584
HALF
13.11 mi13:27:562:20:3110:4410:38
15:36
#27073
25K
15.53 mi13:56:192:48:5410:5328:23
11:43
#27117
30K
18.64 mi14:36:173:28:5211:1339:58
12:52
#27262
20M
20.00 mi14:54:023:46:3711:2017:45
13:05
#27311
21M
21.00 mi15:09:074:01:4211:3115:05
15:05
#27412
35K
21.75 mi15:17:134:09:4811:308:06
10:50
#27345
23M
23.00 mi15:30:484:23:2311:2813:35
10:52
#27215
24M
24.00 mi15:40:284:33:0311:239:40
9:40
#27085
40K
24.85 mi15:49:434:42:1811:229:15
10:50
#26994
25.2M
25.20 mi15:53:124:45:4711:213:29
10:07
#26935
FINISH
26.22 mi16:03:004:55:3511:179:48
9:38
#26844
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM70-74Seg. OverallSeg. MalesSeg. M70-74
5K3.11 mi3.11 mi26821155471554727073(Top 93%)15632(Top 96%)15632(Top 5563%)
10K6.21 mi3.10 mi26584+23715439+10815439+10826372(Top 91%)15337(Top 94%)15337(Top 5458%)
15K9.32 mi3.11 mi26770-18615509-7015509-7027073(Top 93%)15632(Top 96%)15632(Top 5563%)
20K12.43 mi3.11 mi26584+18615425+8415425+8426136(Top 90%)15219(Top 93%)15219(Top 5416%)
HALF13.11 mi0.68 mi27073-48915634-20915634-20928983(Top 100%)16317(Top 100%)16317(Top 5807%)
25K15.53 mi2.42 mi27117-4415639-515639-527244(Top 94%)15639(Top 96%)15639(Top 5565%)
30K18.64 mi3.11 mi27262-14515678-3915678-3927602(Top 95%)15727(Top 96%)15727(Top 5597%)
20M20.00 mi1.36 mi27311-4915687-915687-927478(Top 95%)15629(Top 96%)15629(Top 5562%)
21M21.00 mi1.00 mi27412-10115711-2415711-2428117(Top 97%)15894(Top 97%)15894(Top 5656%)
35K21.75 mi0.75 mi27345+6715682+2915682+2924931(Top 86%)14357(Top 88%)14357(Top 5109%)
23M23.00 mi1.25 mi27215+13015624+5815624+5824173(Top 83%)13947(Top 85%)13947(Top 4963%)
24M24.00 mi1.00 mi27085+13015560+6415560+6421881(Top 75%)12829(Top 79%)12829(Top 4565%)
40K24.85 mi0.85 mi26994+9115516+4415516+4423873(Top 82%)13724(Top 84%)13724(Top 4884%)
25.2M25.20 mi0.35 mi26935+5915487+2915487+2919752(Top 68%)11750(Top 72%)11750(Top 4181%)
FINISH26.22 mi1.02 mi26844+9115435+5215435+5222728(Top 78%)13185(Top 81%)13185(Top 4692%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 93%
Γ—21
+97ft-345ft

Overall

27073

Males

15632

M70-74

15632

5K→10K

3.1 - 6.2 mi

Top 91%
Γ—5
+79ft-138ft

Overall

26372

Males

15337

M70-74

15337

10K→15K

6.2 - 9.3 mi

Top 93%
Γ—3
+67ft-78ft

Overall

27073

Males

15632

M70-74

15632

15K→20K

9.3 - 12.4 mi

Top 90%
Γ—5
+106ft-86ft

Overall

26136

Males

15219

M70-74

15219

20K→HALF

12.4 - 13.1 mi

Top 100%
Γ—2
+19ft-37ft

Overall

28983

Males

16317

M70-74

16317

HALF→25K

13.1 - 15.5 mi

Top 94%
Γ—4
+66ft-88ft

Overall

27244

Males

15639

M70-74

15639

25K→30K

15.5 - 18.6 mi

Top 95%
Γ—9
+181ft-148ft

Overall

27602

Males

15727

M70-74

15727

30K→20M

18.6 - 20.0 mi

Top 95%
Γ—5
+64ft-50ft

Overall

27478

Males

15629

M70-74

15629

20M→21M

20.0 - 21.0 mi

Top 97%
Γ—8
+106ft-24ft

Overall

28117

Males

15894

M70-74

15894

21M→35K

21.0 - 21.8 mi

Top 86%
Γ—7
+17ft-86ft

Overall

24931

Males

14357

M70-74

14357

35K→23M

21.8 - 23.0 mi

Top 83%
Γ—5
+23ft-63ft

Overall

24173

Males

13947

M70-74

13947

23M→24M

23.0 - 24.0 mi

Top 75%
Γ—6
+12ft-82ft

Overall

21881

Males

12829

M70-74

12829

24M→40K

24.0 - 24.9 mi

Top 82%
Γ—1
+6ft-20ft

Overall

23873

Males

13724

M70-74

13724

40K→25.2M

24.9 - 25.2 mi

Top 68%
Γ—1
+13ft-16ft

Overall

19752

Males

11750

M70-74

11750

25.2M→FINISH

25.2 - 26.2 mi

Top 78%
Γ—2
+22ft-21ft

Overall

22728

Males

13185

M70-74

13185

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1334*
Passed By
1006
Net Change
-23
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#26821
5K β†’ 10K320*83+237#26821#26584
10K β†’ 15K75200-186#26584#26770
15K β†’ 20K222*36+186#26770#26584
20K β†’ HALF1200-489#26584#27073
HALF β†’ 25K64108-44#27073#27117
25K β†’ 30K46191-145#27117#27262
30K β†’ 20M2675-49#27262#27311
20M β†’ 21M8109-101#27311#27412
21M β†’ 35K681+67#27412#27345
35K β†’ 23M1300+130#27345#27215
23M β†’ 24M1322+130#27215#27085
24M β†’ 40K910+91#27085#26994
40K β†’ 25.2M590+59#26994#26935
25.2M β†’ FINISH921+91#26935#26844
TOTALS1334*1006-23

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

πŸ“Š

Passing Analysis Visualizations

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

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing