All Results|Race Analytics|Course|Contact
BOSTON MARATHON 2026

Li Zhou

Bib: 1747•M

Boston Marathon logo
0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 29021
Top 23%
Gender (Male)
#0 / 16340
Top 35%
Masters (Masters Men)
#0 / 10617
Top 21%
Age Group (M40-44)
#0 / 2198
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
19:53
3.11 mi
Rank: #3464
Start → 5K
19:53 | 6:24/mi
10K
40:17
6.21 mi
Rank: #4056 (-592)
5K → 10K
20:24 | 6:34/mi
15K
1:01:10
9.32 mi
Rank: #4675 (-619)
10K → 15K
20:53 | 6:44/mi
20K
1:22:18
12.43 mi
Rank: #4960 (-285)
15K → 20K
21:08 | 6:49/mi
HALF
1:26:54
13.11 mi
Rank: #5027 (-67)
20K → HALF
4:36 | 6:45/mi
25K
1:43:36
15.53 mi
Rank: #5220 (-193)
HALF → 25K
16:42 | 6:54/mi
30K
2:05:58
18.64 mi
Rank: #5622 (-402)
25K → 30K
22:22 | 7:12/mi
20M
2:16:03
20.00 mi
Rank: #5865
30K → 20M
10:05 | 7:26/mi
21M
2:24:03
21.00 mi
Rank: #6130
20M → 21M
8:00 | 8:00/mi
35K
2:29:23
21.75 mi
Rank: #6205
21M → 35K
5:20 | 7:08/mi
23M
2:38:36
23.00 mi
Rank: #6304
35K → 23M
9:13 | 7:22/mi
24M
2:45:54
24.00 mi
Rank: #6369
23M → 24M
7:18 | 7:18/mi
40K
2:52:26
24.85 mi
Rank: #6447
24M → 40K
6:32 | 7:39/mi
25.2M
2:55:19
25.20 mi
Rank: #6474
40K → 25.2M
2:53 | 8:22/mi
FINISH
3:03:08
26.22 mi
Rank: #6619
25.2M → FINISH
7:49 | 7:41/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:26:54
Pace6:38 /mi
2nd Half
Distance13.11 mi
Time1:36:14
Pace7:21 /mi
📊Positive Split: 10.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0119:536:2419:53
6:24
-
10K
6.21 mi10:43:2540:176:2920:24
6:34
+0:10
15K
9.32 mi11:04:181:01:106:3420:53
6:44
+0:10
20K
12.43 mi11:25:261:22:186:3821:08
6:49
+0:05
HALF
13.11 mi11:30:021:26:546:384:36
6:45
-0:04
25K
15.53 mi11:46:441:43:366:4116:42
6:54
+0:09
30K
18.64 mi12:09:062:05:586:4622:22
7:12
+0:18
20M
20.00 mi12:19:112:16:036:4910:05
7:26
+0:14
21M
21.00 mi12:27:112:24:036:528:00
8:00
+0:34
35K
21.75 mi12:32:312:29:236:535:20
7:08
-0:52
23M
23.00 mi12:41:442:38:366:549:13
7:22
+0:14
24M
24.00 mi12:49:022:45:546:557:18
7:18
-0:04
40K
24.85 mi12:55:342:52:266:576:32
7:39
+0:21
25.2M
25.20 mi12:58:272:55:196:582:53
8:22
+0:43
FINISH
26.22 mi13:06:163:03:087:007:49
7:41
-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

6:24 /mi

Average Pace

6:59 /mi

Slowest Pace

8:22 /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

1:43:36

57% of race

Time at Steady Pace

54:18

30% of race

Time at Slower Pace

25:14

14% of race

Average Pace: 6:59 /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 mi10:23:0119:536:2419:53
6:24
#3464
10K
6.21 mi10:43:2540:176:2920:24
6:34
#4056
15K
9.32 mi11:04:181:01:106:3420:53
6:44
#4675
20K
12.43 mi11:25:261:22:186:3821:08
6:49
#4960
HALF
13.11 mi11:30:021:26:546:384:36
6:45
#5027
25K
15.53 mi11:46:441:43:366:4116:42
6:54
#5220
30K
18.64 mi12:09:062:05:586:4622:22
7:12
#5622
20M
20.00 mi12:19:112:16:036:4910:05
7:26
#5865
21M
21.00 mi12:27:112:24:036:528:00
8:00
#6130
35K
21.75 mi12:32:312:29:236:535:20
7:08
#6205
23M
23.00 mi12:41:442:38:366:549:13
7:22
#6304
24M
24.00 mi12:49:022:45:546:557:18
7:18
#6369
40K
24.85 mi12:55:342:52:266:576:32
7:39
#6447
25.2M
25.20 mi12:58:272:55:196:582:53
8:22
#6474
FINISH
26.22 mi13:06:163:03:087:007:49
7:41
#6619
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM40-44Seg. OverallSeg. MalesSeg. M40-44
5K3.11 mi3.11 mi3464330033006033(Top 21%)5462(Top 33%)5462(Top 248%)
10K6.21 mi3.10 mi4056-5923852-5523852-5524761(Top 16%)4468(Top 27%)4468(Top 203%)
15K9.32 mi3.11 mi4675-6194387-5354387-5356033(Top 21%)5462(Top 33%)5462(Top 248%)
20K12.43 mi3.11 mi4960-2854633-2464633-2466225(Top 21%)5582(Top 34%)5582(Top 254%)
HALF13.11 mi0.68 mi5027-674690-574690-576610(Top 23%)5890(Top 36%)5890(Top 268%)
25K15.53 mi2.42 mi5220-1934840-1504840-1506556(Top 23%)5780(Top 35%)5780(Top 263%)
30K18.64 mi3.11 mi5622-4025130-2905130-2907382(Top 25%)6239(Top 38%)6239(Top 284%)
20M20.00 mi1.36 mi5865-2435305-1755305-1758504(Top 29%)6766(Top 41%)6766(Top 308%)
21M21.00 mi1.00 mi6130-2655486-1815486-1819851(Top 34%)7370(Top 45%)7370(Top 335%)
35K21.75 mi0.75 mi6205-755540-545540-547995(Top 28%)6404(Top 39%)6404(Top 291%)
23M23.00 mi1.25 mi6304-995612-725612-727861(Top 27%)6260(Top 38%)6260(Top 285%)
24M24.00 mi1.00 mi6369-655649-375649-378568(Top 30%)6548(Top 40%)6548(Top 298%)
40K24.85 mi0.85 mi6447-785685-365685-369842(Top 34%)7114(Top 44%)7114(Top 324%)
25.2M25.20 mi0.35 mi6474-275701-165701-1610596(Top 37%)7403(Top 45%)7403(Top 337%)
FINISH26.22 mi1.02 mi6619-1455787-865787-8612696(Top 44%)8409(Top 51%)8409(Top 383%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 21%
×21
+97ft-345ft

Overall

6033

Males

5462

M40-44

5462

5K→10K

3.1 - 6.2 mi

Top 16%
×5
+79ft-138ft

Overall

4761

Males

4468

M40-44

4468

10K→15K

6.2 - 9.3 mi

Top 21%
×3
+67ft-78ft

Overall

6033

Males

5462

M40-44

5462

15K→20K

9.3 - 12.4 mi

Top 21%
×5
+106ft-86ft

Overall

6225

Males

5582

M40-44

5582

20K→HALF

12.4 - 13.1 mi

Top 23%
×2
+19ft-37ft

Overall

6610

Males

5890

M40-44

5890

HALF→25K

13.1 - 15.5 mi

Top 23%
×4
+66ft-88ft

Overall

6556

Males

5780

M40-44

5780

25K→30K

15.5 - 18.6 mi

Top 25%
×9
+181ft-148ft

Overall

7382

Males

6239

M40-44

6239

30K→20M

18.6 - 20.0 mi

Top 29%
×5
+64ft-50ft

Overall

8504

Males

6766

M40-44

6766

20M→21M

20.0 - 21.0 mi

Top 34%
×8
+106ft-24ft

Overall

9851

Males

7370

M40-44

7370

21M→35K

21.0 - 21.8 mi

Top 28%
×7
+17ft-86ft

Overall

7995

Males

6404

M40-44

6404

35K→23M

21.8 - 23.0 mi

Top 27%
×5
+23ft-63ft

Overall

7861

Males

6260

M40-44

6260

23M→24M

23.0 - 24.0 mi

Top 30%
×6
+12ft-82ft

Overall

8568

Males

6548

M40-44

6548

24M→40K

24.0 - 24.9 mi

Top 34%
×1
+6ft-20ft

Overall

9842

Males

7114

M40-44

7114

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1
+13ft-16ft

Overall

10596

Males

7403

M40-44

7403

25.2M→FINISH

25.2 - 26.2 mi

Top 44%
×2
+22ft-21ft

Overall

12696

Males

8409

M40-44

8409

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Position interactions are being recalculated

Started about 3 hours ago. This usually takes 10-20 minutes. Please check back shortly.

Activity Data

Upload your GPX file to see detailed activity metrics

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export & Support

Download your data, get help, and share your feedback

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing