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BOSTON MARATHON 2023

Zigang Zhang

Bib: 14064•M

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Male)
#0 / 15176
Masters (Masters Men)
#0 / 9891
Division (M50-54)
#0 / 2052
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:45
Rank: #10964
Start → 5K
23:45 | 7:39/mi
10K· 6.21 mi
48:34
Rank: #12846 (-1882)
5K → 10K
24:49 | 7:59/mi
15K· 9.32 mi
1:13:14
Rank: #13198 (-352)
10K → 15K
24:40 | 7:56/mi
20K· 12.43 mi
1:38:46
Rank: #13679 (-481)
15K → 20K
25:32 | 8:13/mi
Half· 13.11 mi
1:44:15
Rank: #13723 (-44)
20K → Half
5:29 | 8:02/mi
25K· 15.53 mi
2:05:14
Rank: #14352 (-629)
Half → 25K
20:59 | 8:39/mi
30K· 18.64 mi
2:32:50
Rank: #14801 (-449)
25K → 30K
27:36 | 8:53/mi
20M
2:44:55
Rank: #14879 (-78)
30K → 20M
12:05 | 8:54/mi
21M
2:54:40
Rank: #15003 (-124)
20M → 21M
9:45 | 9:45/mi
35K· 21.75 mi
3:01:31
Rank: #15151 (-148)
21M → 35K
6:51 | 9:09/mi
23M
3:12:57
Rank: #15216 (-65)
35K → 23M
11:26 | 9:08/mi
24M
3:21:58
Rank: #15321 (-105)
23M → 24M
9:01 | 9:01/mi
40K· 24.85 mi
3:29:39
Rank: #15360 (-39)
24M → 40K
7:41 | 8:59/mi
25.2M
3:33:05
Rank: #15379 (-19)
40K → 25.2M
3:26 | 9:57/mi
Finish· 26.22 mi
3:41:54
Rank: #15416 (-37)
25.2M → Finish
8:49 | 8:39/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:15
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:57:39
Pace8:58 /mi
📊Positive Split: 12.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:4123:457:3923:45
7:39
-
10K
6.21 mi11:17:3048:347:4924:49
7:59
+0:20
15K
9.32 mi11:42:101:13:147:5124:40
7:56
-0:03
20K
12.43 mi12:07:421:38:467:5725:32
8:13
+0:17
Half
13.11 mi12:13:111:44:157:575:29
8:02
-0:11
25K
15.53 mi12:34:102:05:148:0420:59
8:39
+0:37
30K
18.64 mi13:01:462:32:508:1227:36
8:53
+0:14
20M
20.00 mi13:13:512:44:558:1512:05
8:54
+0:01
21M
21.00 mi13:23:362:54:408:199:45
9:45
+0:51
35K
21.75 mi13:30:273:01:318:216:51
9:09
-0:36
23M
23.00 mi13:41:533:12:578:2311:26
9:08
-0:01
24M
24.00 mi13:50:543:21:588:259:01
9:01
-0:07
40K
24.85 mi13:58:353:29:398:267:41
8:59
-0:02
25.2M
25.20 mi14:02:013:33:058:273:26
9:57
+0:58
Finish
26.22 mi14:10:503:41:548:288:49
8:39
-1:18

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

7:39 /mi

Average Pace

8:28 /mi

Slowest Pace

9:57 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:44:15

47% of race

Time at Steady Pace

1:44:28

47% of race

Time at Slower Pace

13:11

6% of race

Average Pace: 8:28 /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 mi10:52:4123:457:3923:45
7:39
#10964
10K
6.21 mi11:17:3048:347:4924:49
7:59
#12846
15K
9.32 mi11:42:101:13:147:5124:40
7:56
#13198
20K
12.43 mi12:07:421:38:467:5725:32
8:13
#13679
Half
13.11 mi12:13:111:44:157:575:29
8:02
#13723
25K
15.53 mi12:34:102:05:148:0420:59
8:39
#14352
30K
18.64 mi13:01:462:32:508:1227:36
8:53
#14801
20M
20.00 mi13:13:512:44:558:1512:05
8:54
#14879
21M
21.00 mi13:23:362:54:408:199:45
9:45
#15003
35K
21.75 mi13:30:273:01:318:216:51
9:09
#15151
23M
23.00 mi13:41:533:12:578:2311:26
9:08
#15216
24M
24.00 mi13:50:543:21:588:259:01
9:01
#15321
40K
24.85 mi13:58:353:29:398:267:41
8:59
#15360
25.2M
25.20 mi14:02:013:33:058:273:26
9:57
#15379
Finish
26.22 mi14:10:503:41:548:288:49
8:39
#15416
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi109648645864513900(Top 52%)9858(Top 65%)9858(Top 480%)
10K6.21 mi3.10 mi12846-18829487-8429487-84214718(Top 55%)10209(Top 67%)10209(Top 498%)
15K9.32 mi3.11 mi13198-3529605-1189605-11813900(Top 52%)9858(Top 65%)9858(Top 480%)
20K12.43 mi3.11 mi13679-4819765-1609765-16015076(Top 57%)10300(Top 68%)10300(Top 502%)
Half13.11 mi0.68 mi13723-449790-259790-2514640(Top 55%)10160(Top 67%)10160(Top 495%)
25K15.53 mi2.42 mi14352-62910018-22810018-22817116(Top 64%)11022(Top 73%)11022(Top 537%)
30K18.64 mi3.11 mi14801-44910164-14610164-14616554(Top 62%)10712(Top 71%)10712(Top 522%)
20M20.00 mi1.36 mi14879-7810168-410168-415951(Top 60%)10387(Top 68%)10387(Top 506%)
21M21.00 mi1.00 mi15003-12410188-2010188-2017033(Top 64%)10800(Top 71%)10800(Top 526%)
35K21.75 mi0.75 mi15151-14810220-3210220-3218533(Top 70%)11375(Top 75%)11375(Top 554%)
23M23.00 mi1.25 mi15216-6510221-110221-116678(Top 63%)10530(Top 69%)10530(Top 513%)
24M24.00 mi1.00 mi15321-10510247-2610247-2617287(Top 65%)10752(Top 71%)10752(Top 524%)
40K24.85 mi0.85 mi15360-3910242+510242+516048(Top 60%)10145(Top 67%)10145(Top 494%)
25.2M25.20 mi0.35 mi15379-1910236+610236+617146(Top 64%)10615(Top 70%)10615(Top 517%)
Finish26.22 mi1.02 mi15416-3710238-210238-216232(Top 61%)10253(Top 68%)10253(Top 500%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21stories
+97ft-345ft

Overall

13900

Males

9858

M50-54

9858

5K→10K

3.1 - 6.2 mi

Top 55%
×5stories
+79ft-138ft

Overall

14718

Males

10209

M50-54

10209

10K→15K

6.2 - 9.3 mi

Top 52%
×3stories
+67ft-78ft

Overall

13900

Males

9858

M50-54

9858

15K→20K

9.3 - 12.4 mi

Top 57%
×5stories
+106ft-86ft

Overall

15076

Males

10300

M50-54

10300

20K→Half

12.4 - 13.1 mi

Top 55%
×2stories
+19ft-37ft

Overall

14640

Males

10160

M50-54

10160

Half→25K

13.1 - 15.5 mi

Top 64%
×4stories
+66ft-88ft

Overall

17116

Males

11022

M50-54

11022

25K→30K

15.5 - 18.6 mi

Top 62%
×9stories
+181ft-148ft

Overall

16554

Males

10712

M50-54

10712

30K→20M

18.6 - 20.0 mi

Top 60%
×5stories
+64ft-50ft

Overall

15951

Males

10387

M50-54

10387

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

17033

Males

10800

M50-54

10800

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

18533

Males

11375

M50-54

11375

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

16678

Males

10530

M50-54

10530

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

17287

Males

10752

M50-54

10752

24M→40K

24.0 - 24.9 mi

Top 60%
×1story
+6ft-20ft

Overall

16048

Males

10145

M50-54

10145

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1story
+13ft-16ft

Overall

17146

Males

10615

M50-54

10615

25.2M→Finish

25.2 - 26.2 mi

Top 61%
×2stories
+22ft-21ft

Overall

16232

Males

10253

M50-54

10253

Passing Analysis

Category:
Athletes Passed
665
Passed By
5117
Net Change
-4452
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10964
5K → 10K181900-1882#10964#12846
10K → 15K95447-352#12846#13198
15K → 20K77558-481#13198#13679
20K → Half1660-44#13679#13723
Half → 25K33662-629#13723#14352
25K → 30K63512-449#14352#14801
30K → 20M60138-78#14801#14879
20M → 21M50174-124#14879#15003
21M → 35K20168-148#15003#15151
35K → 23M56121-65#15151#15216
23M → 24M46151-105#15216#15321
24M → 40K4685-39#15321#15360
40K → 25.2M2544-19#15360#15379
25.2M → Finish6097-37#15379#15416
TOTALS6655117-4452
📊

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