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BOSTON MARATHON 2026

Kin Keung Julius Chu

Bib: 22477•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
27:24
3.11 mi
Rank: #21784
Start → 5K
27:24 | 8:50/mi
10K
53:16
6.21 mi
Rank: #20579 (+1205)
5K → 10K
25:52 | 8:20/mi
15K
1:19:03
9.32 mi
Rank: #20033 (+546)
10K → 15K
25:47 | 8:18/mi
20K
1:46:44
12.43 mi
Rank: #20420 (-387)
15K → 20K
27:41 | 8:55/mi
HALF
1:54:20
13.11 mi
Rank: #21166 (-746)
20K → HALF
7:36 | 11:09/mi
25K
2:16:04
15.53 mi
Rank: #21138 (+28)
HALF → 25K
21:44 | 8:58/mi
30K
2:47:06
18.64 mi
Rank: #21612 (-474)
25K → 30K
31:02 | 10:00/mi
20M
3:00:46
20.00 mi
Rank: #21731 (-119)
30K → 20M
13:40 | 10:04/mi
21M
3:13:05
21.00 mi
Rank: #22091 (-360)
20M → 21M
12:19 | 12:19/mi
35K
3:20:36
21.75 mi
Rank: #22182 (-91)
21M → 35K
7:31 | 10:03/mi
23M
3:34:02
23.00 mi
Rank: #22336 (-154)
35K → 23M
13:26 | 10:45/mi
24M
3:45:08
24.00 mi
Rank: #22513 (-177)
23M → 24M
11:06 | 11:06/mi
40K
3:54:00
24.85 mi
Rank: #22525 (-12)
24M → 40K
8:52 | 10:23/mi
25.2M
3:57:47
25.20 mi
Rank: #22508 (+17)
40K → 25.2M
3:47 | 10:59/mi
FINISH
4:07:00
26.22 mi
Rank: #22439 (+69)
25.2M → FINISH
9:13 | 9:03/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:54:20
Pace8:44 /mi
2nd Half
Distance13.11 mi
Time2:12:40
Pace10:08 /mi
📊Positive Split: 16.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:0927:248:5027:24
8:50
-
10K
6.21 mi11:55:0153:168:3525:52
8:20
-0:30
15K
9.32 mi12:20:481:19:038:2925:47
8:18
-0:02
20K
12.43 mi12:48:291:46:448:3627:41
8:55
+0:37
HALF
13.11 mi12:56:051:54:208:447:36
11:09
+2:14
25K
15.53 mi13:17:492:16:048:4621:44
8:58
-2:11
30K
18.64 mi13:48:512:47:068:5831:02
10:00
+1:02
20M
20.00 mi14:02:313:00:469:0313:40
10:04
+0:04
21M
21.00 mi14:14:503:13:059:1212:19
12:19
+2:15
35K
21.75 mi14:22:213:20:369:147:31
10:03
-2:16
23M
23.00 mi14:35:473:34:029:1913:26
10:45
+0:42
24M
24.00 mi14:46:533:45:089:2311:06
11:06
+0:21
40K
24.85 mi14:55:453:54:009:258:52
10:23
-0:43
25.2M
25.20 mi14:59:323:57:479:273:47
10:59
+0:36
FINISH
26.22 mi15:08:454:07:009:269:13
9:03
-1:56

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

8:18 /mi

Average Pace

9:26 /mi

Slowest Pace

12:19 /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

2:17:41

56% of race

Time at Steady Pace

1:01:05

25% of race

Time at Slower Pace

48:14

20% of race

Average Pace: 9:25 /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 mi11:29:0927:248:5027:24
8:50
#21784
10K
6.21 mi11:55:0153:168:3525:52
8:20
#20579
15K
9.32 mi12:20:481:19:038:2925:47
8:18
#20033
20K
12.43 mi12:48:291:46:448:3627:41
8:55
#20420
HALF
13.11 mi12:56:051:54:208:447:36
11:09
#21166
25K
15.53 mi13:17:492:16:048:4621:44
8:58
#21138
30K
18.64 mi13:48:512:47:068:5831:02
10:00
#21612
20M
20.00 mi14:02:313:00:469:0313:40
10:04
#21731
21M
21.00 mi14:14:503:13:059:1212:19
12:19
#22091
35K
21.75 mi14:22:213:20:369:147:31
10:03
#22182
23M
23.00 mi14:35:473:34:029:1913:26
10:45
#22336
24M
24.00 mi14:46:533:45:089:2311:06
11:06
#22513
40K
24.85 mi14:55:453:54:009:258:52
10:23
#22525
25.2M
25.20 mi14:59:323:57:479:273:47
10:59
#22508
FINISH
26.22 mi15:08:454:07:009:269:13
9:03
#22439
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 mi21784131191311918974(Top 65%)11866(Top 73%)11866(Top 784%)
10K6.21 mi3.10 mi20579+120512561+55812561+55819343(Top 67%)12046(Top 74%)12046(Top 796%)
15K9.32 mi3.11 mi20033+54612321+24012321+24018974(Top 65%)11866(Top 73%)11866(Top 784%)
20K12.43 mi3.11 mi20420-38712492-17112492-17121516(Top 74%)13011(Top 80%)13011(Top 859%)
HALF13.11 mi0.68 mi21166-74612830-33812830-33827520(Top 95%)15759(Top 96%)15759(Top 1041%)
25K15.53 mi2.42 mi21138+2812813+1712813+1721012(Top 72%)12750(Top 78%)12750(Top 842%)
30K18.64 mi3.11 mi21612-47413039-22613039-22623100(Top 80%)13664(Top 84%)13664(Top 903%)
20M20.00 mi1.36 mi21731-11913074-3513074-3522733(Top 78%)13415(Top 82%)13415(Top 886%)
21M21.00 mi1.00 mi22091-36013242-16813242-16825518(Top 88%)14641(Top 90%)14641(Top 967%)
35K21.75 mi0.75 mi22182-9113278-3613278-3623260(Top 80%)13589(Top 83%)13589(Top 898%)
23M23.00 mi1.25 mi22336-15413335-5713335-5723891(Top 82%)13813(Top 85%)13813(Top 912%)
24M24.00 mi1.00 mi22513-17713396-6113396-6125287(Top 87%)14453(Top 88%)14453(Top 955%)
40K24.85 mi0.85 mi22525-1213379+1713379+1722878(Top 79%)13247(Top 81%)13247(Top 875%)
25.2M25.20 mi0.35 mi22508+1713369+1013369+1022286(Top 77%)12980(Top 79%)12980(Top 857%)
FINISH26.22 mi1.02 mi22439+6913329+4013329+4020705(Top 71%)12213(Top 75%)12213(Top 807%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21
+97ft-345ft

Overall

18974

Males

11866

M60-64

11866

5K→10K

3.1 - 6.2 mi

Top 67%
×5
+79ft-138ft

Overall

19343

Males

12046

M60-64

12046

10K→15K

6.2 - 9.3 mi

Top 65%
×3
+67ft-78ft

Overall

18974

Males

11866

M60-64

11866

15K→20K

9.3 - 12.4 mi

Top 74%
×5
+106ft-86ft

Overall

21516

Males

13011

M60-64

13011

20K→HALF

12.4 - 13.1 mi

Top 95%
×2
+19ft-37ft

Overall

27520

Males

15759

M60-64

15759

HALF→25K

13.1 - 15.5 mi

Top 72%
×4
+66ft-88ft

Overall

21012

Males

12750

M60-64

12750

25K→30K

15.5 - 18.6 mi

Top 80%
×9
+181ft-148ft

Overall

23100

Males

13664

M60-64

13664

30K→20M

18.6 - 20.0 mi

Top 78%
×5
+64ft-50ft

Overall

22733

Males

13415

M60-64

13415

20M→21M

20.0 - 21.0 mi

Top 88%
×8
+106ft-24ft

Overall

25518

Males

14641

M60-64

14641

21M→35K

21.0 - 21.8 mi

Top 80%
×7
+17ft-86ft

Overall

23260

Males

13589

M60-64

13589

35K→23M

21.8 - 23.0 mi

Top 82%
×5
+23ft-63ft

Overall

23891

Males

13813

M60-64

13813

23M→24M

23.0 - 24.0 mi

Top 87%
×6
+12ft-82ft

Overall

25287

Males

14453

M60-64

14453

24M→40K

24.0 - 24.9 mi

Top 79%
×1
+6ft-20ft

Overall

22878

Males

13247

M60-64

13247

40K→25.2M

24.9 - 25.2 mi

Top 77%
×1
+13ft-16ft

Overall

22286

Males

12980

M60-64

12980

25.2M→FINISH

25.2 - 26.2 mi

Top 71%
×2
+22ft-21ft

Overall

20705

Males

12213

M60-64

12213

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2392*
Passed By
1739
Net Change
-655
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21784
5K → 10K1241*36+1205#21784#20579
10K → 15K581*35+546#20579#20033
15K → 20K73200-387#20033#20420
20K → HALF1200-746#20420#21166
HALF → 25K132104+28#21166#21138
25K → 30K56200-474#21138#21612
30K → 20M61180-119#21612#21731
20M → 21M11200-360#21731#22091
21M → 35K25116-91#22091#22182
35K → 23M39193-154#22182#22336
23M → 24M13190-177#22336#22513
24M → 40K4961-12#22513#22525
40K → 25.2M2912+17#22525#22508
25.2M → FINISH8112+69#22508#22439
TOTALS2392*1739-655

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

📊

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