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BOSTON MARATHON 2023

Xiaoyang Zhang

Bib: 10444•M

CA

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

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
8:21/mi
25:55
↑ 97↓ 3451.5%
10K· 6.21 mi
7:53/mi
50:24
↑ 79↓ 1380.4%
15K· 9.32 mi
8:04/mi
1:15:29
↑ 67↓ 78
20K· 12.43 mi
8:17/mi
1:41:14
↑ 106↓ 860.1%
Half· 13.11 mi
8:14/mi
1:46:51
↑ 19↓ 370.5%
25K· 15.53 mi
8:25/mi
2:07:15
↑ 66↓ 880.2%
30K· 18.64 mi
8:40/mi
2:34:11
↑ 181↓ 1480.2%
20M
8:26/mi
2:45:38
↑ 64↓ 500.2%
21M
8:56/mi
2:54:34
↑ 106↓ 241.6%
35K· 21.75 mi
7:42/mi
3:00:20
↑ 17↓ 861.7%
23M
8:01/mi
3:10:22
↑ 23↓ 630.6%
24M
8:10/mi
3:18:32
↓ 821.3%
40K· 24.85 mi
8:28/mi
3:25:46
↓ 200.3%
25.2M
9:25/mi
3:29:01
↑ 13↓ 160.2%
Finish· 26.22 mi
8:30/mi
3:37:41
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:46:51
Pace8:09 /mi
2nd Half
Distance13.11 mi
Time1:50:50
Pace8:27 /mi
📊Positive Split: 3.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:1925:558:2125:55
8:21
-
10K
6.21 mi11:44:4850:248:0724:29
7:53
-0:28
15K
9.32 mi12:09:531:15:298:0625:05
8:04
+0:11
20K
12.43 mi12:35:381:41:148:0925:45
8:17
+0:13
Half
13.11 mi12:41:151:46:518:095:37
8:14
-0:03
25K
15.53 mi13:01:392:07:158:1120:24
8:25
+0:11
30K
18.64 mi13:28:352:34:118:1626:56
8:40
+0:15
20M
20.00 mi13:40:022:45:388:1711:27
8:26
-0:14
21M
21.00 mi13:48:582:54:348:198:56
8:56
+0:30
35K
21.75 mi13:54:443:00:208:185:46
7:42
-1:14
23M
23.00 mi14:04:463:10:228:1710:02
8:01
+0:19
24M
24.00 mi14:12:563:18:328:168:10
8:10
+0:09
40K
24.85 mi14:20:103:25:468:177:14
8:28
+0:18
25.2M
25.20 mi14:23:253:29:018:183:15
9:25
+0:57
Finish
26.22 mi14:32:053:37:418:198:40
8:30
-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

8:19 /mi

Slowest Pace

9:25 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:05:22

30% of race

Time at Steady Pace

1:53:12

52% of race

Time at Slower Pace

39:07

18% of race

Average Pace: 8:18 /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 mi11:20:1925:558:2125:55
8:21
#16419
10K
6.21 mi11:44:4850:248:0724:29
7:53
#15188
15K
9.32 mi12:09:531:15:298:0625:05
8:04
#15110
20K
12.43 mi12:35:381:41:148:0925:45
8:17
#15220
Half
13.11 mi12:41:151:46:518:095:37
8:14
#15255
25K
15.53 mi13:01:392:07:158:1120:24
8:25
#15293
30K
18.64 mi13:28:352:34:118:1626:56
8:40
#15263
20M
20.00 mi13:40:022:45:388:1711:27
8:26
#15107
21M
21.00 mi13:48:582:54:348:198:56
8:56
#14967
35K
21.75 mi13:54:443:00:208:185:46
7:42
#14787
23M
23.00 mi14:04:463:10:228:1710:02
8:01
#14509
24M
24.00 mi14:12:563:18:328:168:10
8:10
#14392
40K
24.85 mi14:20:103:25:468:177:14
8:28
#14330
25.2M
25.20 mi14:23:253:29:018:183:15
9:25
#14338
Finish
26.22 mi14:32:053:37:418:198:40
8:30
#14361
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM50-54Seg. OverallSeg. MalesSeg. M50-54
5K3.11 mi3.11 mi16419108491084914976(Top 56%)10291(Top 68%)10291(Top 502%)
10K6.21 mi3.10 mi15188+123110403+44610403+44613802(Top 52%)9860(Top 65%)9860(Top 481%)
15K9.32 mi3.11 mi15110+7810359+4410359+4414976(Top 56%)10291(Top 68%)10291(Top 502%)
20K12.43 mi3.11 mi15220-11010379-2010379-2015528(Top 58%)10460(Top 69%)10460(Top 510%)
Half13.11 mi0.68 mi15255-3510389-1010389-1015961(Top 60%)10661(Top 70%)10661(Top 520%)
25K15.53 mi2.42 mi15293-3810380+910380+915656(Top 59%)10394(Top 68%)10394(Top 507%)
30K18.64 mi3.11 mi15263+3010324+5610324+5615313(Top 58%)10175(Top 67%)10175(Top 496%)
20M20.00 mi1.36 mi15107+15610249+7510249+7513163(Top 49%)9208(Top 61%)9208(Top 449%)
21M21.00 mi1.00 mi14967+14010178+7110178+7113013(Top 49%)9046(Top 60%)9046(Top 441%)
35K21.75 mi0.75 mi14787+18010092+8610092+869994(Top 38%)7648(Top 50%)7648(Top 373%)
23M23.00 mi1.25 mi14509+2789963+1299963+1299838(Top 37%)7406(Top 49%)7406(Top 361%)
24M24.00 mi1.00 mi14392+1179887+769887+7612369(Top 46%)8580(Top 57%)8580(Top 418%)
40K24.85 mi0.85 mi14330+629838+499838+4913063(Top 49%)8812(Top 58%)8812(Top 429%)
25.2M25.20 mi0.35 mi14338-89835+39835+314762(Top 55%)9566(Top 63%)9566(Top 466%)
Finish26.22 mi1.02 mi14361-239823+129823+1215430(Top 58%)9915(Top 65%)9915(Top 483%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 56%
×21story building
+97ft-345ft

Overall

14976

Males

10291

M50-54

10291

5K→10K

3.1 - 6.2 mi

Top 52%
×5story building
+79ft-138ft

Overall

13802

Males

9860

M50-54

9860

10K→15K

6.2 - 9.3 mi

Top 56%
×3story building
+67ft-78ft

Overall

14976

Males

10291

M50-54

10291

15K→20K

9.3 - 12.4 mi

Top 58%
×5story building
+106ft-86ft

Overall

15528

Males

10460

M50-54

10460

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

15961

Males

10661

M50-54

10661

Half→25K

13.1 - 15.5 mi

Top 59%
×4story building
+66ft-88ft

Overall

15656

Males

10394

M50-54

10394

25K→30K

15.5 - 18.6 mi

Top 58%
×9story building
+181ft-148ft

Overall

15313

Males

10175

M50-54

10175

30K→20M

18.6 - 20.0 mi

Top 49%
×5story building
+64ft-50ft

Overall

13163

Males

9208

M50-54

9208

20M→21M

20.0 - 21.0 mi

Top 49%
×8story building
+106ft-24ft

Overall

13013

Males

9046

M50-54

9046

21M→35K

21.0 - 21.8 mi

Top 38%
×7story building
+17ft-86ft

Overall

9994

Males

7648

M50-54

7648

35K→23M

21.8 - 23.0 mi

Top 37%
×5story building
+23ft-63ft

Overall

9838

Males

7406

M50-54

7406

23M→24M

23.0 - 24.0 mi

Top 46%
×6story building
+12ft-82ft

Overall

12369

Males

8580

M50-54

8580

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

13063

Males

8812

M50-54

8812

40K→25.2M

24.9 - 25.2 mi

Top 55%
×1story
+13ft-16ft

Overall

14762

Males

9566

M50-54

9566

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

15430

Males

9915

M50-54

9915

Passing Analysis

Category:
Athletes Passed
3081
Passed By
1023
Net Change
+2058
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16419
5K → 10K127241+1231#16419#15188
10K → 15K216138+78#15188#15110
15K → 20K152262-110#15110#15220
20K → Half2055-35#15220#15255
Half → 25K121159-38#15255#15293
25K → 30K197167+30#15293#15263
30K → 20M17822+156#15263#15107
20M → 21M16121+140#15107#14967
21M → 35K1800+180#14967#14787
35K → 23M2780+278#14787#14509
23M → 24M13619+117#14509#14392
24M → 40K9230+62#14392#14330
40K → 25.2M2432-8#14330#14338
25.2M → Finish5477-23#14338#14361
TOTALS30811023+2058
📊

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