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BOSTON MARATHON 2026

Xianbiao Zhou

Bib: 31221•M

0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Male)
#0 / 16340
Masters (Masters Men)
#0 / 10617
Division (M60-64)
#0 / 1514
Race Day Weather
51°/41°F
overcast clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:27/mi
26:15
↑ 97↓ 3451.5%
10K· 6.21 mi
8:26/mi
52:25
↑ 79↓ 1380.4%
15K· 9.32 mi
8:32/mi
1:18:54
↑ 67↓ 78
20K· 12.43 mi
8:46/mi
1:46:08
↑ 106↓ 860.1%
HALF· 13.11 mi
8:34/mi
1:51:58
↑ 19↓ 370.5%
25K· 15.53 mi
8:56/mi
2:13:36
↑ 66↓ 880.2%
30K· 18.64 mi
9:16/mi
2:42:21
↑ 181↓ 1480.2%
20M
9:43/mi
2:55:32
↑ 64↓ 500.2%
21M
11:07/mi
3:06:39
↑ 106↓ 241.6%
35K· 21.75 mi
10:22/mi
3:14:24
↑ 17↓ 861.7%
23M
10:41/mi
3:27:45
↑ 23↓ 630.6%
24M
10:00/mi
3:37:45
↓ 821.3%
40K· 24.85 mi
11:21/mi
3:47:27
↓ 200.3%
25.2M
11:51/mi
3:51:32
↑ 13↓ 160.2%
FINISH· 26.22 mi
11:42/mi
4:03:27
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HALFFaster
Distance13.11 mi
Time1:51:58
Pace8:33 /mi
2nd Half
Distance13.11 mi
Time2:11:29
Pace10:02 /mi
📊Positive Split: 17.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:55:3526:158:2726:15
8:27
-
10K
6.21 mi12:21:4552:258:2726:10
8:26
-0:01
15K
9.32 mi12:48:141:18:548:2826:29
8:32
+0:06
20K
12.43 mi13:15:281:46:088:3327:14
8:46
+0:14
HALF
13.11 mi13:21:181:51:588:335:50
8:34
-0:12
25K
15.53 mi13:42:562:13:368:3721:38
8:56
+0:22
30K
18.64 mi14:11:412:42:218:4328:45
9:16
+0:20
20M
20.00 mi14:24:522:55:328:4713:11
9:43
+0:27
21M
21.00 mi14:35:593:06:398:5411:07
11:07
+1:24
35K
21.75 mi14:43:443:14:248:577:45
10:22
-0:45
23M
23.00 mi14:57:053:27:459:0213:21
10:41
+0:19
24M
24.00 mi15:07:053:37:459:0510:00
10:00
-0:41
40K
24.85 mi15:16:473:47:279:109:42
11:21
+1:21
25.2M
25.20 mi15:20:523:51:329:124:05
11:51
+0:30
FINISH
26.22 mi15:32:474:03:279:1811:55
11:42
-0:09

Checkpoints & Pacing

📈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

8:26 /mi

Average Pace

9:18 /mi

Slowest Pace

11:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:36

55% of race

Time at Steady Pace

51:56

21% of race

Time at Slower Pace

57:55

24% of race

Average Pace: 9:17 /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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:55:3526:158:2726:15
8:27
#19776
10K
6.21 mi12:21:4552:258:2726:10
8:26
#19800
15K
9.32 mi12:48:141:18:548:2826:29
8:32
#19946
20K
12.43 mi13:15:281:46:088:3327:14
8:46
#20131
HALF
13.11 mi13:21:181:51:588:335:50
8:34
#20149
25K
15.53 mi13:42:562:13:368:3721:38
8:56
#20267
30K
18.64 mi14:11:412:42:218:4328:45
9:16
#20378
20M
20.00 mi14:24:522:55:328:4713:11
9:43
#20515
21M
21.00 mi14:35:593:06:398:5411:07
11:07
#20750
35K
21.75 mi14:43:443:14:248:577:45
10:22
#20940
23M
23.00 mi14:57:053:27:459:0213:21
10:41
#21241
24M
24.00 mi15:07:053:37:459:0510:00
10:00
#21343
40K
24.85 mi15:16:473:47:279:109:42
11:21
#21598
25.2M
25.20 mi15:20:523:51:329:124:05
11:51
#21679
FINISH
26.22 mi15:32:474:03:279:1811:55
11:42
#22004
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM60-64Seg. OverallSeg. MalesSeg. M60-64
5K3.11 mi3.11 mi19776121831218320294(Top 70%)12462(Top 76%)12462(Top 823%)
10K6.21 mi3.10 mi19800-2412211-2812211-2819914(Top 69%)12283(Top 75%)12283(Top 811%)
15K9.32 mi3.11 mi19946-14612284-7312284-7320294(Top 70%)12462(Top 76%)12462(Top 823%)
20K12.43 mi3.11 mi20131-18512347-6312347-6320782(Top 72%)12664(Top 78%)12664(Top 836%)
HALF13.11 mi0.68 mi20149-1812357-1012357-1020579(Top 71%)12599(Top 77%)12599(Top 832%)
25K15.53 mi2.42 mi20267-11812405-4812405-4820800(Top 72%)12652(Top 77%)12652(Top 836%)
30K18.64 mi3.11 mi20378-11112439-3412439-3420750(Top 71%)12546(Top 77%)12546(Top 829%)
20M20.00 mi1.36 mi20515-13712494-5512494-5521738(Top 75%)12939(Top 79%)12939(Top 855%)
21M21.00 mi1.00 mi20750-23512600-10612600-10623364(Top 81%)13651(Top 84%)13651(Top 902%)
35K21.75 mi0.75 mi20940-19012675-7512675-7523992(Top 83%)13918(Top 85%)13918(Top 919%)
23M23.00 mi1.25 mi21241-30112816-14112816-14123756(Top 82%)13755(Top 84%)13755(Top 909%)
24M24.00 mi1.00 mi21343-10212855-3912855-3922788(Top 79%)13266(Top 81%)13266(Top 876%)
40K24.85 mi0.85 mi21598-25512965-11012965-11024847(Top 86%)14195(Top 87%)14195(Top 938%)
25.2M25.20 mi0.35 mi21679-8112988-2312988-2324141(Top 83%)13843(Top 85%)13843(Top 914%)
FINISH26.22 mi1.02 mi22004-32513133-14513133-14527120(Top 93%)15321(Top 94%)15321(Top 1012%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 70%
×21story building
+97ft-345ft

Overall

20294

Males

12462

M60-64

12462

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

19914

Males

12283

M60-64

12283

10K→15K

6.2 - 9.3 mi

Top 70%
×3story building
+67ft-78ft

Overall

20294

Males

12462

M60-64

12462

15K→20K

9.3 - 12.4 mi

Top 72%
×5story building
+106ft-86ft

Overall

20782

Males

12664

M60-64

12664

20K→HALF

12.4 - 13.1 mi

Top 71%
×2story building
+19ft-37ft

Overall

20579

Males

12599

M60-64

12599

HALF→25K

13.1 - 15.5 mi

Top 72%
×4story building
+66ft-88ft

Overall

20800

Males

12652

M60-64

12652

25K→30K

15.5 - 18.6 mi

Top 71%
×9story building
+181ft-148ft

Overall

20750

Males

12546

M60-64

12546

30K→20M

18.6 - 20.0 mi

Top 75%
×5story building
+64ft-50ft

Overall

21738

Males

12939

M60-64

12939

20M→21M

20.0 - 21.0 mi

Top 81%
×8story building
+106ft-24ft

Overall

23364

Males

13651

M60-64

13651

21M→35K

21.0 - 21.8 mi

Top 83%
×7story building
+17ft-86ft

Overall

23992

Males

13918

M60-64

13918

35K→23M

21.8 - 23.0 mi

Top 82%
×5story building
+23ft-63ft

Overall

23756

Males

13755

M60-64

13755

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

22788

Males

13266

M60-64

13266

24M→40K

24.0 - 24.9 mi

Top 86%
×1story
+6ft-20ft

Overall

24847

Males

14195

M60-64

14195

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

24141

Males

13843

M60-64

13843

25.2M→FINISH

25.2 - 26.2 mi

Top 93%
×2story building
+22ft-21ft

Overall

27120

Males

15321

M60-64

15321

Passing Analysis

Category:
Athletes Passed
910
Passed By
3138
Net Change
-2228
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19776
5K → 10K257281-24#19776#19800
10K → 15K115261-146#19800#19946
15K → 20K114299-185#19946#20131
20K → HALF1634-18#20131#20149
HALF → 25K83201-118#20149#20267
25K → 30K144255-111#20267#20378
30K → 20M62199-137#20378#20515
20M → 21M25260-235#20515#20750
21M → 35K17207-190#20750#20940
35K → 23M20321-301#20940#21241
23M → 24M33135-102#21241#21343
24M → 40K11266-255#21343#21598
40K → 25.2M1192-81#21598#21679
25.2M → FINISH2327-325#21679#22004
TOTALS9103138-2228
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing