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BOSTON MARATHON 2026

Carlos Chu

Bib: 22971•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 (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
28:45
3.11 mi
Rank: #23615
Start → 5K
28:45 | 9:16/mi
10K
53:30
6.21 mi
Rank: #20809 (+2806)
5K → 10K
24:45 | 7:58/mi
15K
1:20:07
9.32 mi
Rank: #20698 (+111)
10K → 15K
26:37 | 8:35/mi
20K
1:47:10
12.43 mi
Rank: #20634 (+64)
15K → 20K
27:03 | 8:43/mi
HALF
1:52:38
13.11 mi
Rank: #20448 (+186)
20K → HALF
5:28 | 8:02/mi
25K
2:13:52
15.53 mi
Rank: #20371 (+77)
HALF → 25K
21:14 | 8:46/mi
30K
2:42:26
18.64 mi
Rank: #20409 (-38)
25K → 30K
28:34 | 9:12/mi
20M
2:56:04
20.00 mi
Rank: #20655 (-246)
30K → 20M
13:38 | 10:03/mi
21M
3:05:53
21.00 mi
Rank: #20589 (+66)
20M → 21M
9:49 | 9:49/mi
35K
3:12:39
21.75 mi
Rank: #20566 (+23)
21M → 35K
6:46 | 9:03/mi
23M
3:23:27
23.00 mi
Rank: #20355 (+211)
35K → 23M
10:48 | 8:38/mi
24M
3:31:34
24.00 mi
Rank: #20141 (+214)
23M → 24M
8:07 | 8:07/mi
40K
3:38:51
24.85 mi
Rank: #19998 (+143)
24M → 40K
7:17 | 8:32/mi
25.2M
3:41:56
25.20 mi
Rank: #19907 (+91)
40K → 25.2M
3:05 | 8:57/mi
FINISH
3:50:21
26.22 mi
Rank: #19797 (+110)
25.2M → FINISH
8:25 | 8:16/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:52:38
Pace8:36 /mi
2nd Half
Distance13.11 mi
Time1:57:43
Pace8:59 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:5628:459:1628:45
9:16
-
10K
6.21 mi12:15:4153:308:3724:45
7:58
-1:18
15K
9.32 mi12:42:181:20:078:3626:37
8:35
+0:37
20K
12.43 mi13:09:211:47:108:3827:03
8:43
+0:08
HALF
13.11 mi13:14:491:52:388:365:28
8:02
-0:41
25K
15.53 mi13:36:032:13:528:3821:14
8:46
+0:44
30K
18.64 mi14:04:372:42:268:4328:34
9:12
+0:26
20M
20.00 mi14:18:152:56:048:4913:38
10:03
+0:51
21M
21.00 mi14:28:043:05:538:529:49
9:49
-0:14
35K
21.75 mi14:34:503:12:398:526:46
9:03
-0:46
23M
23.00 mi14:45:383:23:278:5110:48
8:38
-0:25
24M
24.00 mi14:53:453:31:348:498:07
8:07
-0:31
40K
24.85 mi15:01:023:38:518:497:17
8:32
+0:25
25.2M
25.20 mi15:04:073:41:568:493:05
8:57
+0:25
FINISH
26.22 mi15:12:323:50:218:488:25
8:16
-0:41

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

7:58 /mi

Average Pace

8:48 /mi

Slowest Pace

10:03 /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

46:45

20% of race

Time at Steady Pace

1:36:04

42% of race

Time at Slower Pace

1:27:32

38% of race

Average Pace: 8:47 /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 mi11:50:5628:459:1628:45
9:16
#23615
10K
6.21 mi12:15:4153:308:3724:45
7:58
#20809
15K
9.32 mi12:42:181:20:078:3626:37
8:35
#20698
20K
12.43 mi13:09:211:47:108:3827:03
8:43
#20634
HALF
13.11 mi13:14:491:52:388:365:28
8:02
#20448
25K
15.53 mi13:36:032:13:528:3821:14
8:46
#20371
30K
18.64 mi14:04:372:42:268:4328:34
9:12
#20409
20M
20.00 mi14:18:152:56:048:4913:38
10:03
#20655
21M
21.00 mi14:28:043:05:538:529:49
9:49
#20589
35K
21.75 mi14:34:503:12:398:526:46
9:03
#20566
23M
23.00 mi14:45:383:23:278:5110:48
8:38
#20355
24M
24.00 mi14:53:453:31:348:498:07
8:07
#20141
40K
24.85 mi15:01:023:38:518:497:17
8:32
#19998
25.2M
25.20 mi15:04:073:41:568:493:05
8:57
#19907
FINISH
26.22 mi15:12:323:50:218:488:25
8:16
#19797
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 mi23615140331403320489(Top 71%)12564(Top 77%)12564(Top 830%)
10K6.21 mi3.10 mi20809+280612665+136812665+136816980(Top 59%)11013(Top 67%)11013(Top 727%)
15K9.32 mi3.11 mi20698+11112630+3512630+3520489(Top 71%)12564(Top 77%)12564(Top 830%)
20K12.43 mi3.11 mi20634+6412583+4712583+4720475(Top 71%)12505(Top 77%)12505(Top 826%)
HALF13.11 mi0.68 mi20448+18612500+8312500+8317242(Top 59%)11137(Top 68%)11137(Top 736%)
25K15.53 mi2.42 mi20371+7712458+4212458+4219990(Top 69%)12258(Top 75%)12258(Top 810%)
30K18.64 mi3.11 mi20409-3812449+912449+920481(Top 71%)12411(Top 76%)12411(Top 820%)
20M20.00 mi1.36 mi20655-24612558-10912558-10922667(Top 78%)13383(Top 82%)13383(Top 884%)
21M21.00 mi1.00 mi20589+6612527+3112527+3119796(Top 68%)11977(Top 73%)11977(Top 791%)
35K21.75 mi0.75 mi20566+2312499+2812499+2820182(Top 70%)12072(Top 74%)12072(Top 797%)
23M23.00 mi1.25 mi20355+21112383+11612383+11616485(Top 57%)10302(Top 63%)10302(Top 680%)
24M24.00 mi1.00 mi20141+21412263+12012263+12014540(Top 50%)9413(Top 58%)9413(Top 622%)
40K24.85 mi0.85 mi19998+14312169+9412169+9415799(Top 54%)9898(Top 61%)9898(Top 654%)
25.2M25.20 mi0.35 mi19907+9112122+4712122+4714363(Top 49%)9248(Top 57%)9248(Top 611%)
FINISH26.22 mi1.02 mi19797+11012057+6512057+6516765(Top 58%)10337(Top 63%)10337(Top 683%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21
+97ft-345ft

Overall

20489

Males

12564

M60-64

12564

5K→10K

3.1 - 6.2 mi

Top 59%
×5
+79ft-138ft

Overall

16980

Males

11013

M60-64

11013

10K→15K

6.2 - 9.3 mi

Top 71%
×3
+67ft-78ft

Overall

20489

Males

12564

M60-64

12564

15K→20K

9.3 - 12.4 mi

Top 71%
×5
+106ft-86ft

Overall

20475

Males

12505

M60-64

12505

20K→HALF

12.4 - 13.1 mi

Top 59%
×2
+19ft-37ft

Overall

17242

Males

11137

M60-64

11137

HALF→25K

13.1 - 15.5 mi

Top 69%
×4
+66ft-88ft

Overall

19990

Males

12258

M60-64

12258

25K→30K

15.5 - 18.6 mi

Top 71%
×9
+181ft-148ft

Overall

20481

Males

12411

M60-64

12411

30K→20M

18.6 - 20.0 mi

Top 78%
×5
+64ft-50ft

Overall

22667

Males

13383

M60-64

13383

20M→21M

20.0 - 21.0 mi

Top 68%
×8
+106ft-24ft

Overall

19796

Males

11977

M60-64

11977

21M→35K

21.0 - 21.8 mi

Top 70%
×7
+17ft-86ft

Overall

20182

Males

12072

M60-64

12072

35K→23M

21.8 - 23.0 mi

Top 57%
×5
+23ft-63ft

Overall

16485

Males

10302

M60-64

10302

23M→24M

23.0 - 24.0 mi

Top 50%
×6
+12ft-82ft

Overall

14540

Males

9413

M60-64

9413

24M→40K

24.0 - 24.9 mi

Top 54%
×1
+6ft-20ft

Overall

15799

Males

9898

M60-64

9898

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1
+13ft-16ft

Overall

14363

Males

9248

M60-64

9248

25.2M→FINISH

25.2 - 26.2 mi

Top 58%
×2
+22ft-21ft

Overall

16765

Males

10337

M60-64

10337

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
4759
Passed By
941
Net Change
+3818
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23615
5K → 10K28060+2806#23615#20809
10K → 15K260149+111#20809#20698
15K → 20K189125+64#20698#20634
20K → HALF1860+186#20634#20448
HALF → 25K16083+77#20448#20371
25K → 30K168206-38#20371#20409
30K → 20M35281-246#20409#20655
20M → 21M11650+66#20655#20589
21M → 35K4926+23#20589#20566
35K → 23M2154+211#20566#20355
23M → 24M2140+214#20355#20141
24M → 40K1485+143#20141#19998
40K → 25.2M932+91#19998#19907
25.2M → FINISH12010+110#19907#19797
TOTALS4759941+3818
📊

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