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BOSTON MARATHON 2023

Jian Zhang

Bib: 5253•M

NJ

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 15%
Gender (Male)
#0 / 15176
Top 25%
Masters (Masters Men)
#0 / 9891
Top 12%
Division (M55-59)
#0 / 1422
Top 3%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
21:11
Rank: #4845
Start → 5K
21:11 | 6:49/mi
10K· 6.21 mi
42:10
Rank: #4843 (+2)
5K → 10K
20:59 | 6:45/mi
15K· 9.32 mi
1:03:15
Rank: #4855 (-12)
10K → 15K
21:05 | 6:47/mi
20K· 12.43 mi
1:24:30
Rank: #4839 (+16)
15K → 20K
21:15 | 6:50/mi
Half· 13.11 mi
1:29:10
Rank: #4875 (-36)
20K → Half
4:40 | 6:50/mi
25K· 15.53 mi
1:45:47
Rank: #4786 (+89)
Half → 25K
16:37 | 6:51/mi
30K· 18.64 mi
2:07:43
Rank: #4764 (+22)
25K → 30K
21:56 | 7:04/mi
20M
2:17:21
Rank: #4736 (+28)
30K → 20M
9:38 | 7:05/mi
21M
2:24:40
Rank: #4651 (+85)
20M → 21M
7:19 | 7:19/mi
35K· 21.75 mi
2:29:35
Rank: #4562 (+89)
21M → 35K
4:55 | 6:34/mi
23M
2:38:20
Rank: #4481 (+81)
35K → 23M
8:45 | 6:59/mi
24M
2:44:51
Rank: #4331 (+150)
23M → 24M
6:31 | 6:31/mi
40K· 24.85 mi
2:50:36
Rank: #4222 (+109)
24M → 40K
5:45 | 6:44/mi
25.2M
2:53:06
Rank: #4190 (+32)
40K → 25.2M
2:30 | 7:15/mi
Finish· 26.22 mi
2:59:38
Rank: #4081 (+109)
25.2M → Finish
6:32 | 6:25/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:29:10
Pace6:48 /mi
2nd Half
Distance13.11 mi
Time1:30:28
Pace6:54 /mi
📊Positive Split: 1.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:5021:116:4921:11
6:49
-
10K
6.21 mi10:44:4942:106:4720:59
6:45
-0:04
15K
9.32 mi11:05:541:03:156:4721:05
6:47
+0:02
20K
12.43 mi11:27:091:24:306:4821:15
6:50
+0:03
Half
13.11 mi11:31:491:29:106:484:40
6:50
0:00
25K
15.53 mi11:48:261:45:476:4916:37
6:51
+0:01
30K
18.64 mi12:10:222:07:436:5121:56
7:04
+0:13
20M
20.00 mi12:20:002:17:216:529:38
7:05
+0:01
21M
21.00 mi12:27:192:24:406:537:19
7:19
+0:14
35K
21.75 mi12:32:142:29:356:534:55
6:34
-0:45
23M
23.00 mi12:40:592:38:206:538:45
6:59
+0:25
24M
24.00 mi12:47:302:44:516:526:31
6:31
-0:28
40K
24.85 mi12:53:152:50:366:525:45
6:44
+0:13
25.2M
25.20 mi12:55:452:53:066:522:30
7:15
+0:31
Finish
26.22 mi13:02:172:59:386:516:32
6:25
-0:50

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

6:25 /mi

Average Pace

6:51 /mi

Slowest Pace

7:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:18:15

77% of race

Time at Steady Pace

41:23

23% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:51 /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 mi10:23:5021:116:4921:11
6:49
#4845
10K
6.21 mi10:44:4942:106:4720:59
6:45
#4843
15K
9.32 mi11:05:541:03:156:4721:05
6:47
#4855
20K
12.43 mi11:27:091:24:306:4821:15
6:50
#4839
Half
13.11 mi11:31:491:29:106:484:40
6:50
#4875
25K
15.53 mi11:48:261:45:476:4916:37
6:51
#4786
30K
18.64 mi12:10:222:07:436:5121:56
7:04
#4764
20M
20.00 mi12:20:002:17:216:529:38
7:05
#4736
21M
21.00 mi12:27:192:24:406:537:19
7:19
#4651
35K
21.75 mi12:32:142:29:356:534:55
6:34
#4562
23M
23.00 mi12:40:592:38:206:538:45
6:59
#4481
24M
24.00 mi12:47:302:44:516:526:31
6:31
#4331
40K
24.85 mi12:53:152:50:366:525:45
6:44
#4222
25.2M
25.20 mi12:55:452:53:066:522:30
7:15
#4190
Finish
26.22 mi13:02:172:59:386:516:32
6:25
#4081
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi4845450445044965(Top 19%)4609(Top 30%)4609(Top 324%)
10K6.21 mi3.10 mi4843+24502+24502+24842(Top 18%)4494(Top 30%)4494(Top 316%)
15K9.32 mi3.11 mi4855-124517-154517-154965(Top 19%)4609(Top 30%)4609(Top 324%)
20K12.43 mi3.11 mi4839+164506+114506+114795(Top 18%)4453(Top 29%)4453(Top 313%)
Half13.11 mi0.68 mi4875-364537-314537-315514(Top 21%)5074(Top 33%)5074(Top 357%)
25K15.53 mi2.42 mi4786+894455+824455+824599(Top 17%)4278(Top 28%)4278(Top 301%)
30K18.64 mi3.11 mi4764+224436+194436+194707(Top 18%)4344(Top 29%)4344(Top 305%)
20M20.00 mi1.36 mi4736+284410+264410+264529(Top 17%)4154(Top 27%)4154(Top 292%)
21M21.00 mi1.00 mi4651+854331+794331+793694(Top 14%)3425(Top 23%)3425(Top 241%)
35K21.75 mi0.75 mi4562+894250+814250+812870(Top 11%)2697(Top 18%)2697(Top 190%)
23M23.00 mi1.25 mi4481+814177+734177+733723(Top 14%)3437(Top 23%)3437(Top 242%)
24M24.00 mi1.00 mi4331+1504050+1274050+1272188(Top 8%)2054(Top 14%)2054(Top 144%)
40K24.85 mi0.85 mi4222+1093949+1013949+1012492(Top 9%)2312(Top 15%)2312(Top 163%)
25.2M25.20 mi0.35 mi4190+323921+283921+282753(Top 10%)2539(Top 17%)2539(Top 179%)
Finish26.22 mi1.02 mi4081+1093818+1033818+1032077(Top 8%)1932(Top 13%)1932(Top 136%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 19%
×21stories
+97ft-345ft

Overall

4965

Males

4609

M55-59

4609

5K→10K

3.1 - 6.2 mi

Top 18%
×5stories
+79ft-138ft

Overall

4842

Males

4494

M55-59

4494

10K→15K

6.2 - 9.3 mi

Top 19%
×3stories
+67ft-78ft

Overall

4965

Males

4609

M55-59

4609

15K→20K

9.3 - 12.4 mi

Top 18%
×5stories
+106ft-86ft

Overall

4795

Males

4453

M55-59

4453

20K→Half

12.4 - 13.1 mi

Top 21%
×2stories
+19ft-37ft

Overall

5514

Males

5074

M55-59

5074

Half→25K

13.1 - 15.5 mi

Top 17%
×4stories
+66ft-88ft

Overall

4599

Males

4278

M55-59

4278

25K→30K

15.5 - 18.6 mi

Top 18%
×9stories
+181ft-148ft

Overall

4707

Males

4344

M55-59

4344

30K→20M

18.6 - 20.0 mi

Top 17%
×5stories
+64ft-50ft

Overall

4529

Males

4154

M55-59

4154

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3694

Males

3425

M55-59

3425

21M→35K

21.0 - 21.8 mi

Top 11%
×7stories
+17ft-86ft

Overall

2870

Males

2697

M55-59

2697

35K→23M

21.8 - 23.0 mi

Top 14%
×5stories
+23ft-63ft

Overall

3723

Males

3437

M55-59

3437

23M→24M

23.0 - 24.0 mi

Top 8%
×6stories
+12ft-82ft

Overall

2188

Males

2054

M55-59

2054

24M→40K

24.0 - 24.9 mi

Top 9%
×1story
+6ft-20ft

Overall

2492

Males

2312

M55-59

2312

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2753

Males

2539

M55-59

2539

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2077

Males

1932

M55-59

1932

Passing Analysis

Category:
Athletes Passed
1514
Passed By
750
Net Change
+764
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#4845
5K → 10K202200+2#4845#4843
10K → 15K104116-12#4843#4855
15K → 20K10791+16#4855#4839
20K → Half1551-36#4839#4875
Half → 25K13950+89#4875#4786
25K → 30K147125+22#4786#4764
30K → 20M8052+28#4764#4736
20M → 21M9510+85#4736#4651
21M → 35K978+89#4651#4562
35K → 23M11332+81#4562#4481
23M → 24M1500+150#4481#4331
24M → 40K1145+109#4331#4222
40K → 25.2M364+32#4222#4190
25.2M → Finish1156+109#4190#4081
TOTALS1514750+764
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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