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BOSTON MARATHON 2023

Wei Song Yao

Bib: 12240•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 (M55-59)
#0 / 1422
Top 46%
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
7:32/mi
23:23
↑ 97↓ 3451.5%
10K· 6.21 mi
7:45/mi
47:27
↑ 79↓ 1380.4%
15K· 9.32 mi
7:57/mi
1:12:08
↑ 67↓ 78
20K· 12.43 mi
7:54/mi
1:36:40
↑ 106↓ 860.1%
Half· 13.11 mi
7:17/mi
1:41:38
↑ 19↓ 370.5%
25K· 15.53 mi
8:12/mi
2:01:31
↑ 66↓ 880.2%
30K· 18.64 mi
8:31/mi
2:27:58
↑ 181↓ 1480.2%
20M
8:48/mi
2:39:56
↑ 64↓ 500.2%
21M
10:11/mi
2:50:07
↑ 106↓ 241.6%
35K· 21.75 mi
8:19/mi
2:56:20
↑ 17↓ 861.7%
23M
8:31/mi
3:07:00
↑ 23↓ 630.6%
24M
8:17/mi
3:15:17
↓ 821.3%
40K· 24.85 mi
8:44/mi
3:22:45
↓ 200.3%
25.2M
9:49/mi
3:26:08
↑ 13↓ 160.2%
Finish· 26.22 mi
8:35/mi
3:34:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:38
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:53:15
Pace8:38 /mi
📊Positive Split: 11.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:2723:237:3223:23
7:32
-
10K
6.21 mi11:37:3147:277:3824:04
7:45
+0:13
15K
9.32 mi12:02:121:12:087:4424:41
7:57
+0:12
20K
12.43 mi12:26:441:36:407:4724:32
7:54
-0:03
Half
13.11 mi12:31:421:41:387:454:58
7:17
-0:37
25K
15.53 mi12:51:352:01:317:4919:53
8:12
+0:55
30K
18.64 mi13:18:022:27:587:5626:27
8:31
+0:19
20M
20.00 mi13:30:002:39:568:0011:58
8:48
+0:17
21M
21.00 mi13:40:112:50:078:0610:11
10:11
+1:23
35K
21.75 mi13:46:242:56:208:066:13
8:19
-1:52
23M
23.00 mi13:57:043:07:008:0810:40
8:31
+0:12
24M
24.00 mi14:05:213:15:178:088:17
8:17
-0:14
40K
24.85 mi14:12:493:22:458:097:28
8:44
+0:27
25.2M
25.20 mi14:16:123:26:088:113:23
9:49
+1:05
Finish
26.22 mi14:24:573:34:538:128:45
8:35
-1:14

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

7:17 /mi

Average Pace

8:12 /mi

Slowest Pace

10:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:16:57

36% of race

Time at Steady Pace

1:44:56

49% of race

Time at Slower Pace

33:00

15% of race

Average Pace: 8:12 /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 mi11:13:2723:237:3223:23
7:32
#9854
10K
6.21 mi11:37:3147:277:3824:04
7:45
#11229
15K
9.32 mi12:02:121:12:087:4424:41
7:57
#12141
20K
12.43 mi12:26:441:36:407:4724:32
7:54
#12196
Half
13.11 mi12:31:421:41:387:454:58
7:17
#12005
25K
15.53 mi12:51:352:01:317:4919:53
8:12
#12370
30K
18.64 mi13:18:022:27:587:5626:27
8:31
#12794
20M
20.00 mi13:30:002:39:568:0011:58
8:48
#13018
21M
21.00 mi13:40:112:50:078:0610:11
10:11
#13457
35K
21.75 mi13:46:242:56:208:066:13
8:19
#13471
23M
23.00 mi13:57:043:07:008:0810:40
8:31
#13441
24M
24.00 mi14:05:213:15:178:088:17
8:17
#13396
40K
24.85 mi14:12:493:22:458:097:28
8:44
#13429
25.2M
25.20 mi14:16:123:26:088:113:23
9:49
#13493
Finish
26.22 mi14:24:573:34:538:128:45
8:35
#13597
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi98548060806013936(Top 52%)9872(Top 65%)9872(Top 694%)
10K6.21 mi3.10 mi11229-13758761-7018761-70112636(Top 47%)9396(Top 62%)9396(Top 661%)
15K9.32 mi3.11 mi12141-9129153-3929153-39213936(Top 52%)9872(Top 65%)9872(Top 694%)
20K12.43 mi3.11 mi12196-559148+59148+512581(Top 47%)9265(Top 61%)9265(Top 652%)
Half13.11 mi0.68 mi12005+1919068+809068+808469(Top 32%)7208(Top 47%)7208(Top 507%)
25K15.53 mi2.42 mi12370-3659200-1329200-13214223(Top 53%)9856(Top 65%)9856(Top 693%)
30K18.64 mi3.11 mi12794-4249351-1519351-15114397(Top 54%)9817(Top 65%)9817(Top 690%)
20M20.00 mi1.36 mi13018-2249426-759426-7515436(Top 58%)10177(Top 67%)10177(Top 716%)
21M21.00 mi1.00 mi13457-4399593-1679593-16718632(Top 70%)11478(Top 76%)11478(Top 807%)
35K21.75 mi0.75 mi13471-149587+69587+614125(Top 53%)9480(Top 62%)9480(Top 667%)
23M23.00 mi1.25 mi13441+309542+459542+4513345(Top 50%)9068(Top 60%)9068(Top 638%)
24M24.00 mi1.00 mi13396+459511+319511+3113152(Top 49%)8928(Top 59%)8928(Top 628%)
40K24.85 mi0.85 mi13429-339497+149497+1414676(Top 55%)9526(Top 63%)9526(Top 670%)
25.2M25.20 mi0.35 mi13493-649510-139510-1316508(Top 62%)10320(Top 68%)10320(Top 726%)
Finish26.22 mi1.02 mi13597-1049533-239533-2315880(Top 60%)10116(Top 67%)10116(Top 711%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

13936

Males

9872

M55-59

9872

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12636

Males

9396

M55-59

9396

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

13936

Males

9872

M55-59

9872

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

12581

Males

9265

M55-59

9265

20K→Half

12.4 - 13.1 mi

Top 32%
×2story building
+19ft-37ft

Overall

8469

Males

7208

M55-59

7208

Half→25K

13.1 - 15.5 mi

Top 53%
×4story building
+66ft-88ft

Overall

14223

Males

9856

M55-59

9856

25K→30K

15.5 - 18.6 mi

Top 54%
×9story building
+181ft-148ft

Overall

14397

Males

9817

M55-59

9817

30K→20M

18.6 - 20.0 mi

Top 58%
×5story building
+64ft-50ft

Overall

15436

Males

10177

M55-59

10177

20M→21M

20.0 - 21.0 mi

Top 70%
×8story building
+106ft-24ft

Overall

18632

Males

11478

M55-59

11478

21M→35K

21.0 - 21.8 mi

Top 53%
×7story building
+17ft-86ft

Overall

14125

Males

9480

M55-59

9480

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

13345

Males

9068

M55-59

9068

23M→24M

23.0 - 24.0 mi

Top 49%
×6story building
+12ft-82ft

Overall

13152

Males

8928

M55-59

8928

24M→40K

24.0 - 24.9 mi

Top 55%
×1story
+6ft-20ft

Overall

14676

Males

9526

M55-59

9526

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

16508

Males

10320

M55-59

10320

25.2M→Finish

25.2 - 26.2 mi

Top 60%
×2story building
+22ft-21ft

Overall

15880

Males

10116

M55-59

10116

Passing Analysis

Category:
Athletes Passed
956
Passed By
4697
Net Change
-3743
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9854
5K → 10K331406-1375#9854#11229
10K → 15K24936-912#11229#12141
15K → 20K151206-55#12141#12196
20K → Half1921+191#12196#12005
Half → 25K49414-365#12005#12370
25K → 30K81505-424#12370#12794
30K → 20M49273-224#12794#13018
20M → 21M15454-439#13018#13457
21M → 35K5165-14#13457#13471
35K → 23M10272+30#13471#13441
23M → 24M9752+45#13441#13396
24M → 40K4982-33#13396#13429
40K → 25.2M1882-64#13429#13493
25.2M → Finish45149-104#13493#13597
TOTALS9564697-3743
📊

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