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BOSTON MARATHON 2023

Zhengxiang Pan

Bib: 13212•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 32%
Gender (Male)
#0 / 15176
Top 47%
Masters (Masters Men)
#0 / 9891
Top 35%
Division (M55-59)
#0 / 1422
Top 16%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ 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
7:52/mi
24:26
↑ 97↓ 3451.5%
10K· 6.21 mi
7:28/mi
47:37
↑ 79↓ 1380.4%
15K· 9.32 mi
7:24/mi
1:10:36
↑ 67↓ 78
20K· 12.43 mi
7:26/mi
1:33:43
↑ 106↓ 860.1%
Half· 13.11 mi
7:17/mi
1:38:41
↑ 19↓ 370.5%
25K· 15.53 mi
7:31/mi
1:56:55
↑ 66↓ 880.2%
30K· 18.64 mi
7:40/mi
2:20:43
↑ 181↓ 1480.2%
20M
7:42/mi
2:31:11
↑ 64↓ 500.2%
21M
8:04/mi
2:39:15
↑ 106↓ 241.6%
35K· 21.75 mi
7:22/mi
2:44:46
↑ 17↓ 861.7%
23M
7:30/mi
2:54:09
↑ 23↓ 630.6%
24M
7:24/mi
3:01:33
↓ 821.3%
40K· 24.85 mi
7:22/mi
3:07:51
↓ 200.3%
25.2M
8:07/mi
3:10:39
↑ 13↓ 160.2%
Finish· 26.22 mi
7:08/mi
3:17:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:38:41
Pace7:32 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:39:14
Pace7:34 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4324:267:5224:26
7:52
-
10K
6.21 mi11:15:5447:377:4023:11
7:28
-0:24
15K
9.32 mi11:38:531:10:367:3422:59
7:24
-0:04
20K
12.43 mi12:02:001:33:437:3223:07
7:26
+0:02
Half
13.11 mi12:06:581:38:417:324:58
7:17
-0:09
25K
15.53 mi12:25:121:56:557:3218:14
7:31
+0:14
30K
18.64 mi12:49:002:20:437:3323:48
7:40
+0:09
20M
20.00 mi12:59:282:31:117:3410:28
7:42
+0:02
21M
21.00 mi13:07:322:39:157:358:04
8:04
+0:22
35K
21.75 mi13:13:032:44:467:355:31
7:22
-0:42
23M
23.00 mi13:22:262:54:097:349:23
7:30
+0:08
24M
24.00 mi13:29:503:01:337:347:24
7:24
-0:06
40K
24.85 mi13:36:083:07:517:336:18
7:22
-0:02
25.2M
25.20 mi13:38:563:10:397:342:48
8:07
+0:45
Finish
26.22 mi13:46:123:17:557:337:16
7:08
-0:59

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

7:08 /mi

Average Pace

7:33 /mi

Slowest Pace

8:07 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:42:37

82% of race

Time at Steady Pace

35:18

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:33 /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 mi10:52:4324:267:5224:26
7:52
#12941
10K
6.21 mi11:15:5447:377:4023:11
7:28
#11449
15K
9.32 mi11:38:531:10:367:3422:59
7:24
#10699
20K
12.43 mi12:02:001:33:437:3223:07
7:26
#10197
Half
13.11 mi12:06:581:38:417:324:58
7:17
#10068
25K
15.53 mi12:25:121:56:557:3218:14
7:31
#9864
30K
18.64 mi12:49:002:20:437:3323:48
7:40
#9576
20M
20.00 mi12:59:282:31:117:3410:28
7:42
#9436
21M
21.00 mi13:07:322:39:157:358:04
8:04
#9282
35K
21.75 mi13:13:032:44:467:355:31
7:22
#9205
23M
23.00 mi13:22:262:54:097:349:23
7:30
#9007
24M
24.00 mi13:29:503:01:337:347:24
7:24
#8890
40K
24.85 mi13:36:083:07:517:336:18
7:22
#8756
25.2M
25.20 mi13:38:563:10:397:342:48
8:07
#8708
Finish
26.22 mi13:46:123:17:557:337:16
7:08
#8594
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi12941951395139297(Top 35%)7733(Top 51%)7733(Top 544%)
10K6.21 mi3.10 mi11449+14928855+6588855+65810151(Top 38%)8246(Top 54%)8246(Top 580%)
15K9.32 mi3.11 mi10699+7508515+3408515+3409297(Top 35%)7733(Top 51%)7733(Top 544%)
20K12.43 mi3.11 mi10197+5028258+2578258+2578820(Top 33%)7391(Top 49%)7391(Top 520%)
Half13.11 mi0.68 mi10068+1298188+708188+708424(Top 32%)7163(Top 47%)7163(Top 504%)
25K15.53 mi2.42 mi9864+2048059+1298059+1298908(Top 33%)7373(Top 49%)7373(Top 518%)
30K18.64 mi3.11 mi9576+2887853+2067853+2068360(Top 31%)6901(Top 45%)6901(Top 485%)
20M20.00 mi1.36 mi9436+1407742+1117742+1118194(Top 31%)6717(Top 44%)6717(Top 472%)
21M21.00 mi1.00 mi9282+1547619+1237619+1237778(Top 29%)6361(Top 42%)6361(Top 447%)
35K21.75 mi0.75 mi9205+777561+587561+587635(Top 29%)6277(Top 41%)6277(Top 441%)
23M23.00 mi1.25 mi9007+1987427+1347427+1346391(Top 24%)5441(Top 36%)5441(Top 383%)
24M24.00 mi1.00 mi8890+1177324+1037324+1037054(Top 26%)5750(Top 38%)5750(Top 404%)
40K24.85 mi0.85 mi8756+1347224+1007224+1005898(Top 22%)4964(Top 33%)4964(Top 349%)
25.2M25.20 mi0.35 mi8708+487190+347190+347195(Top 27%)5709(Top 38%)5709(Top 401%)
Finish26.22 mi1.02 mi8594+1147105+857105+855995(Top 23%)4934(Top 33%)4934(Top 347%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9297

Males

7733

M55-59

7733

5K→10K

3.1 - 6.2 mi

Top 38%
×5story building
+79ft-138ft

Overall

10151

Males

8246

M55-59

8246

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9297

Males

7733

M55-59

7733

15K→20K

9.3 - 12.4 mi

Top 33%
×5story building
+106ft-86ft

Overall

8820

Males

7391

M55-59

7391

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

8424

Males

7163

M55-59

7163

Half→25K

13.1 - 15.5 mi

Top 33%
×4story building
+66ft-88ft

Overall

8908

Males

7373

M55-59

7373

25K→30K

15.5 - 18.6 mi

Top 31%
×9story building
+181ft-148ft

Overall

8360

Males

6901

M55-59

6901

30K→20M

18.6 - 20.0 mi

Top 31%
×5story building
+64ft-50ft

Overall

8194

Males

6717

M55-59

6717

20M→21M

20.0 - 21.0 mi

Top 29%
×8story building
+106ft-24ft

Overall

7778

Males

6361

M55-59

6361

21M→35K

21.0 - 21.8 mi

Top 29%
×7story building
+17ft-86ft

Overall

7635

Males

6277

M55-59

6277

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6391

Males

5441

M55-59

5441

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

7054

Males

5750

M55-59

5750

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5898

Males

4964

M55-59

4964

40K→25.2M

24.9 - 25.2 mi

Top 27%
×1story
+13ft-16ft

Overall

7195

Males

5709

M55-59

5709

25.2M→Finish

25.2 - 26.2 mi

Top 23%
×2story building
+22ft-21ft

Overall

5995

Males

4934

M55-59

4934

Passing Analysis

Category:
Athletes Passed
4567*
Passed By
220
Net Change
+4347
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12941
5K → 10K152129+1492#12941#11449
10K → 15K76616+750#11449#10699
15K → 20K510*8+502#10699#10197
20K → Half130*1+129#10197#10068
Half → 25K230*26+204#10068#9864
25K → 30K327*39+288#9864#9576
30K → 20M16323+140#9576#9436
20M → 21M17016+154#9436#9282
21M → 35K869+77#9282#9205
35K → 23M20810+198#9205#9007
23M → 24M13518+117#9007#8890
24M → 40K1428+134#8890#8756
40K → 25.2M524+48#8756#8708
25.2M → Finish12713+114#8708#8594
TOTALS4567*220+4347

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

📊

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