Boston Marathon logo
BOSTON MARATHON 2023

Jianping Zheng

Bib: 19282•M

PA

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M55-59)
#0 / 1422
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:43
Rank: #13680
Start → 5K
24:43 | 7:57/mi
10K· 6.21 mi
48:38
Rank: #12942 (+738)
5K → 10K
23:55 | 7:42/mi
15K· 9.32 mi
1:12:48
Rank: #12781 (+161)
10K → 15K
24:10 | 7:47/mi
20K· 12.43 mi
1:37:26
Rank: #12767 (+14)
15K → 20K
24:38 | 7:56/mi
Half· 13.11 mi
1:42:45
Rank: #12752 (+15)
20K → Half
5:19 | 7:48/mi
25K· 15.53 mi
2:02:40
Rank: #13008 (-256)
Half → 25K
19:55 | 8:13/mi
30K· 18.64 mi
2:29:21
Rank: #13388 (-380)
25K → 30K
26:41 | 8:35/mi
20M
2:41:31
Rank: #13637 (-249)
30K → 20M
12:10 | 8:57/mi
21M
2:51:09
Rank: #13845 (-208)
20M → 21M
9:38 | 9:38/mi
35K· 21.75 mi
2:57:19
Rank: #13832 (+13)
21M → 35K
6:10 | 8:15/mi
23M
3:09:35
Rank: #14276 (-444)
35K → 23M
12:16 | 9:48/mi
24M
3:18:16
Rank: #14323 (-47)
23M → 24M
8:41 | 8:41/mi
40K· 24.85 mi
3:25:47
Rank: #14338 (-15)
24M → 40K
7:31 | 8:47/mi
25.2M
3:29:09
Rank: #14366 (-28)
40K → 25.2M
3:22 | 9:46/mi
Finish· 26.22 mi
3:38:10
Rank: #14463 (-97)
25.2M → Finish
9:01 | 8:51/mi

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:45
Pace7:50 /mi
2nd Half
Distance13.11 mi
Time1:55:25
Pace8:48 /mi
📊Positive Split: 12.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:0424:437:5724:43
7:57
-
10K
6.21 mi11:40:5948:387:5023:55
7:42
-0:15
15K
9.32 mi12:05:091:12:487:4924:10
7:47
+0:05
20K
12.43 mi12:29:471:37:267:5024:38
7:56
+0:09
Half
13.11 mi12:35:061:42:457:505:19
7:48
-0:08
25K
15.53 mi12:55:012:02:407:5419:55
8:13
+0:25
30K
18.64 mi13:21:422:29:218:0126:41
8:35
+0:22
20M
20.00 mi13:33:522:41:318:0512:10
8:57
+0:22
21M
21.00 mi13:43:302:51:098:099:38
9:38
+0:41
35K
21.75 mi13:49:402:57:198:096:10
8:15
-1:23
23M
23.00 mi14:01:563:09:358:1512:16
9:48
+1:33
24M
24.00 mi14:10:373:18:168:168:41
8:41
-1:07
40K
24.85 mi14:18:083:25:478:177:31
8:47
+0:06
25.2M
25.20 mi14:21:303:29:098:183:22
9:46
+0:59
Finish
26.22 mi14:30:313:38:108:209:01
8:51
-0:55

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

7:42 /mi

Average Pace

8:20 /mi

Slowest Pace

9:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:40

56% of race

Time at Steady Pace

58:04

27% of race

Time at Slower Pace

37:26

17% of race

Average Pace: 8:19 /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 mi11:17:0424:437:5724:43
7:57
#13680
10K
6.21 mi11:40:5948:387:5023:55
7:42
#12942
15K
9.32 mi12:05:091:12:487:4924:10
7:47
#12781
20K
12.43 mi12:29:471:37:267:5024:38
7:56
#12767
Half
13.11 mi12:35:061:42:457:505:19
7:48
#12752
25K
15.53 mi12:55:012:02:407:5419:55
8:13
#13008
30K
18.64 mi13:21:422:29:218:0126:41
8:35
#13388
20M
20.00 mi13:33:522:41:318:0512:10
8:57
#13637
21M
21.00 mi13:43:302:51:098:099:38
9:38
#13845
35K
21.75 mi13:49:402:57:198:096:10
8:15
#13832
23M
23.00 mi14:01:563:09:358:1512:16
9:48
#14276
24M
24.00 mi14:10:373:18:168:168:41
8:41
#14323
40K
24.85 mi14:18:083:25:478:177:31
8:47
#14338
25.2M
25.20 mi14:21:303:29:098:183:22
9:46
#14366
Finish
26.22 mi14:30:313:38:108:209:01
8:51
#14463
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi136809831983112526(Top 47%)9311(Top 61%)9311(Top 655%)
10K6.21 mi3.10 mi12942+7389514+3179514+31712217(Top 46%)9210(Top 61%)9210(Top 648%)
15K9.32 mi3.11 mi12781+1619438+769438+7612526(Top 47%)9311(Top 61%)9311(Top 655%)
20K12.43 mi3.11 mi12767+149408+309408+3012860(Top 48%)9375(Top 62%)9375(Top 659%)
Half13.11 mi0.68 mi12752+159398+109398+1012633(Top 47%)9358(Top 62%)9358(Top 658%)
25K15.53 mi2.42 mi13008-2569486-889486-8814322(Top 54%)9902(Top 65%)9902(Top 696%)
30K18.64 mi3.11 mi13388-3809601-1159601-11514845(Top 56%)9986(Top 66%)9986(Top 702%)
20M20.00 mi1.36 mi13637-2499683-829683-8216271(Top 61%)10517(Top 69%)10517(Top 740%)
21M21.00 mi1.00 mi13845-2089749-669749-6616553(Top 62%)10584(Top 70%)10584(Top 744%)
35K21.75 mi0.75 mi13832+139725+249725+2413721(Top 52%)9294(Top 61%)9294(Top 654%)
23M23.00 mi1.25 mi14276-4449861-1369861-13619409(Top 73%)11749(Top 77%)11749(Top 826%)
24M24.00 mi1.00 mi14323-479866-59866-515537(Top 58%)9962(Top 66%)9962(Top 701%)
40K24.85 mi0.85 mi14338-159844+229844+2215019(Top 56%)9692(Top 64%)9692(Top 682%)
25.2M25.20 mi0.35 mi14366-289847-39847-316323(Top 61%)10246(Top 68%)10246(Top 721%)
Finish26.22 mi1.02 mi14463-979869-229869-2217246(Top 65%)10718(Top 71%)10718(Top 754%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21stories
+97ft-345ft

Overall

12526

Males

9311

M55-59

9311

5K→10K

3.1 - 6.2 mi

Top 46%
×5stories
+79ft-138ft

Overall

12217

Males

9210

M55-59

9210

10K→15K

6.2 - 9.3 mi

Top 47%
×3stories
+67ft-78ft

Overall

12526

Males

9311

M55-59

9311

15K→20K

9.3 - 12.4 mi

Top 48%
×5stories
+106ft-86ft

Overall

12860

Males

9375

M55-59

9375

20K→Half

12.4 - 13.1 mi

Top 47%
×2stories
+19ft-37ft

Overall

12633

Males

9358

M55-59

9358

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

14322

Males

9902

M55-59

9902

25K→30K

15.5 - 18.6 mi

Top 56%
×9stories
+181ft-148ft

Overall

14845

Males

9986

M55-59

9986

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

16271

Males

10517

M55-59

10517

20M→21M

20.0 - 21.0 mi

Top 62%
×8stories
+106ft-24ft

Overall

16553

Males

10584

M55-59

10584

21M→35K

21.0 - 21.8 mi

Top 52%
×7stories
+17ft-86ft

Overall

13721

Males

9294

M55-59

9294

35K→23M

21.8 - 23.0 mi

Top 73%
×5stories
+23ft-63ft

Overall

19409

Males

11749

M55-59

11749

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

15537

Males

9962

M55-59

9962

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15019

Males

9692

M55-59

9692

40K→25.2M

24.9 - 25.2 mi

Top 61%
×1story
+13ft-16ft

Overall

16323

Males

10246

M55-59

10246

25.2M→Finish

25.2 - 26.2 mi

Top 65%
×2stories
+22ft-21ft

Overall

17246

Males

10718

M55-59

10718

Passing Analysis

Category:
Athletes Passed
1834
Passed By
2617
Net Change
-783
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13680
5K → 10K82385+738#13680#12942
10K → 15K290129+161#12942#12781
15K → 20K197183+14#12781#12767
20K → Half4328+15#12767#12752
Half → 25K77333-256#12752#13008
25K → 30K96476-380#13008#13388
30K → 20M34283-249#13388#13637
20M → 21M37245-208#13637#13845
21M → 35K5441+13#13845#13832
35K → 23M15459-444#13832#14276
23M → 24M63110-47#14276#14323
24M → 40K5772-15#14323#14338
40K → 25.2M1745-28#14338#14366
25.2M → Finish31128-97#14366#14463
TOTALS18342617-783
📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

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

.gpx files up to 10MB

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