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BOSTON MARATHON 2026

Chau Chi Peng

Bib: 24885•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
Top 39%
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
27:22
3.11 mi
Rank: #21729
Start → 5K
27:22 | 8:49/mi
10K
55:57
6.21 mi
Rank: #22772 (-1043)
5K → 10K
28:35 | 9:13/mi
15K
1:23:28
9.32 mi
Rank: #22536 (+236)
10K → 15K
27:31 | 8:52/mi
20K
1:53:04
12.43 mi
Rank: #22928 (-392)
15K → 20K
29:36 | 9:32/mi
HALF
1:59:01
13.11 mi
Rank: #22866 (+62)
20K → HALF
5:57 | 8:44/mi
25K
2:23:33
15.53 mi
Rank: #23266 (-400)
HALF → 25K
24:32 | 10:07/mi
30K
2:56:08
18.64 mi
Rank: #23487 (-221)
25K → 30K
32:35 | 10:30/mi
20M
3:10:18
20.00 mi
Rank: #23484 (+3)
30K → 20M
14:10 | 10:26/mi
21M
3:21:13
21.00 mi
Rank: #23432 (+52)
20M → 21M
10:55 | 10:55/mi
35K
3:29:02
21.75 mi
Rank: #23449 (-17)
21M → 35K
7:49 | 10:27/mi
23M
3:41:13
23.00 mi
Rank: #23302 (+147)
35K → 23M
12:11 | 9:45/mi
24M
3:50:15
24.00 mi
Rank: #23151 (+151)
23M → 24M
9:02 | 9:02/mi
40K
3:58:22
24.85 mi
Rank: #23040 (+111)
24M → 40K
8:07 | 9:30/mi
25.2M
4:01:58
25.20 mi
Rank: #23016 (+24)
40K → 25.2M
3:36 | 10:27/mi
FINISH
4:11:17
26.22 mi
Rank: #22934 (+82)
25.2M → FINISH
9:19 | 9:09/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:59:01
Pace9:05 /mi
2nd Half
Distance13.11 mi
Time2:12:16
Pace10:06 /mi
📊Positive Split: 11.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:3527:228:4927:22
8:49
-
10K
6.21 mi12:22:1055:579:0128:35
9:13
+0:24
15K
9.32 mi12:49:411:23:288:5827:31
8:52
-0:21
20K
12.43 mi13:19:171:53:049:0629:36
9:32
+0:40
HALF
13.11 mi13:25:141:59:019:055:57
8:44
-0:48
25K
15.53 mi13:49:462:23:339:1524:32
10:07
+1:23
30K
18.64 mi14:22:212:56:089:2732:35
10:30
+0:23
20M
20.00 mi14:36:313:10:189:3114:10
10:26
-0:04
21M
21.00 mi14:47:263:21:139:3510:55
10:55
+0:29
35K
21.75 mi14:55:153:29:029:377:49
10:27
-0:28
23M
23.00 mi15:07:263:41:139:3812:11
9:45
-0:42
24M
24.00 mi15:16:283:50:159:369:02
9:02
-0:43
40K
24.85 mi15:24:353:58:229:368:07
9:30
+0:28
25.2M
25.20 mi15:28:114:01:589:373:36
10:27
+0:57
FINISH
26.22 mi15:37:304:11:179:369:19
9:09
-1:18

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

8:44 /mi

Average Pace

9:35 /mi

Slowest Pace

10:55 /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

1:19:11

32% of race

Time at Steady Pace

1:18:29

31% of race

Time at Slower Pace

1:33:37

37% of race

Average Pace: 9:35 /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 mi11:53:3527:228:4927:22
8:49
#21729
10K
6.21 mi12:22:1055:579:0128:35
9:13
#22772
15K
9.32 mi12:49:411:23:288:5827:31
8:52
#22536
20K
12.43 mi13:19:171:53:049:0629:36
9:32
#22928
HALF
13.11 mi13:25:141:59:019:055:57
8:44
#22866
25K
15.53 mi13:49:462:23:339:1524:32
10:07
#23266
30K
18.64 mi14:22:212:56:089:2732:35
10:30
#23487
20M
20.00 mi14:36:313:10:189:3114:10
10:26
#23484
21M
21.00 mi14:47:263:21:139:3510:55
10:55
#23432
35K
21.75 mi14:55:153:29:029:377:49
10:27
#23449
23M
23.00 mi15:07:263:41:139:3812:11
9:45
#23302
24M
24.00 mi15:16:283:50:159:369:02
9:02
#23151
40K
24.85 mi15:24:353:58:229:368:07
9:30
#23040
25.2M
25.20 mi15:28:114:01:589:373:36
10:27
#23016
FINISH
26.22 mi15:37:304:11:179:369:19
9:09
#22934
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 mi21729130921309222008(Top 76%)13271(Top 81%)13271(Top 4723%)
10K6.21 mi3.10 mi22772-104313633-54113633-54123615(Top 81%)14053(Top 86%)14053(Top 5001%)
15K9.32 mi3.11 mi22536+23613519+11413519+11422008(Top 76%)13271(Top 81%)13271(Top 4723%)
20K12.43 mi3.11 mi22928-39213710-19113710-19123830(Top 82%)14131(Top 86%)14131(Top 5029%)
HALF13.11 mi0.68 mi22866+6213684+2613684+2621448(Top 74%)13017(Top 80%)13017(Top 4632%)
25K15.53 mi2.42 mi23266-40013863-17913863-17924554(Top 85%)14455(Top 88%)14455(Top 5144%)
30K18.64 mi3.11 mi23487-22113934-7113934-7124273(Top 84%)14190(Top 87%)14190(Top 5050%)
20M20.00 mi1.36 mi23484+313921+1313921+1323673(Top 82%)13853(Top 85%)13853(Top 4930%)
21M21.00 mi1.00 mi23432+5213884+3713884+3722910(Top 79%)13455(Top 82%)13455(Top 4788%)
35K21.75 mi0.75 mi23449-1713883+113883+124197(Top 83%)14009(Top 86%)14009(Top 4985%)
23M23.00 mi1.25 mi23302+14713798+8513798+8521352(Top 74%)12619(Top 77%)12619(Top 4491%)
24M24.00 mi1.00 mi23151+15113711+8713711+8719605(Top 68%)11689(Top 72%)11689(Top 4160%)
40K24.85 mi0.85 mi23040+11113644+6713644+6720367(Top 70%)12038(Top 74%)12038(Top 4284%)
25.2M25.20 mi0.35 mi23016+2413631+1313631+1320867(Top 72%)12297(Top 75%)12297(Top 4376%)
FINISH26.22 mi1.02 mi22934+8213577+5413577+5421082(Top 73%)12393(Top 76%)12393(Top 4410%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 76%
×21
+97ft-345ft

Overall

22008

Males

13271

M70-74

13271

5K→10K

3.1 - 6.2 mi

Top 81%
×5
+79ft-138ft

Overall

23615

Males

14053

M70-74

14053

10K→15K

6.2 - 9.3 mi

Top 76%
×3
+67ft-78ft

Overall

22008

Males

13271

M70-74

13271

15K→20K

9.3 - 12.4 mi

Top 82%
×5
+106ft-86ft

Overall

23830

Males

14131

M70-74

14131

20K→HALF

12.4 - 13.1 mi

Top 74%
×2
+19ft-37ft

Overall

21448

Males

13017

M70-74

13017

HALF→25K

13.1 - 15.5 mi

Top 85%
×4
+66ft-88ft

Overall

24554

Males

14455

M70-74

14455

25K→30K

15.5 - 18.6 mi

Top 84%
×9
+181ft-148ft

Overall

24273

Males

14190

M70-74

14190

30K→20M

18.6 - 20.0 mi

Top 82%
×5
+64ft-50ft

Overall

23673

Males

13853

M70-74

13853

20M→21M

20.0 - 21.0 mi

Top 79%
×8
+106ft-24ft

Overall

22910

Males

13455

M70-74

13455

21M→35K

21.0 - 21.8 mi

Top 83%
×7
+17ft-86ft

Overall

24197

Males

14009

M70-74

14009

35K→23M

21.8 - 23.0 mi

Top 74%
×5
+23ft-63ft

Overall

21352

Males

12619

M70-74

12619

23M→24M

23.0 - 24.0 mi

Top 68%
×6
+12ft-82ft

Overall

19605

Males

11689

M70-74

11689

24M→40K

24.0 - 24.9 mi

Top 70%
×1
+6ft-20ft

Overall

20367

Males

12038

M70-74

12038

40K→25.2M

24.9 - 25.2 mi

Top 72%
×1
+13ft-16ft

Overall

20867

Males

12297

M70-74

12297

25.2M→FINISH

25.2 - 26.2 mi

Top 73%
×2
+22ft-21ft

Overall

21082

Males

12393

M70-74

12393

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1365
Passed By
2570
Net Change
-1205
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21729
5K → 10K401083-1043#21729#22772
10K → 15K30670+236#22772#22536
15K → 20K78470-392#22536#22928
20K → HALF664+62#22928#22866
HALF → 25K44444-400#22866#23266
25K → 30K75296-221#23266#23487
30K → 20M7471+3#23487#23484
20M → 21M9341+52#23484#23432
21M → 35K4158-17#23432#23449
35K → 23M1569+147#23449#23302
23M → 24M1521+151#23302#23151
24M → 40K1198+111#23151#23040
40K → 25.2M295+24#23040#23016
25.2M → FINISH9210+82#23016#22934
TOTALS13652570-1205
📊

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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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing