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BOSTON MARATHON 2023

Jiahui Mao

Bib: 10788•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 50%
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
7:09/mi
22:13
↑ 97↓ 3451.5%
10K· 6.21 mi
7:19/mi
44:58
↑ 79↓ 1380.4%
15K· 9.32 mi
7:24/mi
1:07:57
↑ 67↓ 78
20K· 12.43 mi
7:37/mi
1:31:38
↑ 106↓ 860.1%
Half· 13.11 mi
7:30/mi
1:36:45
↑ 19↓ 370.5%
25K· 15.53 mi
7:55/mi
1:55:56
↑ 66↓ 880.2%
30K· 18.64 mi
8:38/mi
2:22:44
↑ 181↓ 1480.2%
20M
9:02/mi
2:35:00
↑ 64↓ 500.2%
21M
10:03/mi
2:45:03
↑ 106↓ 241.6%
35K· 21.75 mi
8:44/mi
2:51:35
↑ 17↓ 861.7%
23M
9:47/mi
3:03:50
↑ 23↓ 630.6%
24M
9:59/mi
3:13:49
↓ 821.3%
40K· 24.85 mi
10:30/mi
3:22:48
↓ 200.3%
25.2M
11:21/mi
3:26:43
↑ 13↓ 160.2%
Finish· 26.22 mi
10:21/mi
3:37:16
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:45
Pace7:23 /mi
2nd Half
Distance13.11 mi
Time2:00:31
Pace9:12 /mi
📊Positive Split: 24.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5922:137:0922:13
7:09
-
10K
6.21 mi11:15:4444:587:1422:45
7:19
+0:10
15K
9.32 mi11:38:431:07:577:1722:59
7:24
+0:05
20K
12.43 mi12:02:241:31:387:2223:41
7:37
+0:13
Half
13.11 mi12:07:311:36:457:235:07
7:30
-0:07
25K
15.53 mi12:26:421:55:567:2819:11
7:55
+0:25
30K
18.64 mi12:53:302:22:447:3926:48
8:38
+0:43
20M
20.00 mi13:05:462:35:007:4512:16
9:02
+0:24
21M
21.00 mi13:15:492:45:037:5210:03
10:03
+1:01
35K
21.75 mi13:22:212:51:357:536:32
8:44
-1:19
23M
23.00 mi13:34:363:03:508:0012:15
9:47
+1:03
24M
24.00 mi13:44:353:13:498:059:59
9:59
+0:12
40K
24.85 mi13:53:343:22:488:108:59
10:30
+0:31
25.2M
25.20 mi13:57:293:26:438:123:55
11:21
+0:51
Finish
26.22 mi14:08:023:37:168:1810:33
10:21
-1:00

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

7:09 /mi

Average Pace

8:18 /mi

Slowest Pace

11:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:55:56

53% of race

Time at Steady Pace

45:36

21% of race

Time at Slower Pace

55:44

26% of race

Average Pace: 8:17 /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 mi10:52:5922:137:0922:13
7:09
#7193
10K
6.21 mi11:15:4444:587:1422:45
7:19
#8015
15K
9.32 mi11:38:431:07:577:1722:59
7:24
#8389
20K
12.43 mi12:02:241:31:387:2223:41
7:37
#8794
Half
13.11 mi12:07:311:36:457:235:07
7:30
#8858
25K
15.53 mi12:26:421:55:567:2819:11
7:55
#9332
30K
18.64 mi12:53:302:22:447:3926:48
8:38
#10410
20M
20.00 mi13:05:462:35:007:4512:16
9:02
#10926
21M
21.00 mi13:15:492:45:037:5210:03
10:03
#11510
35K
21.75 mi13:22:212:51:357:536:32
8:44
#11762
23M
23.00 mi13:34:363:03:508:0012:15
9:47
#12393
24M
24.00 mi13:44:353:13:498:059:59
9:59
#12954
40K
24.85 mi13:53:343:22:488:108:59
10:30
#13451
25.2M
25.20 mi13:57:293:26:438:123:55
11:21
#13673
Finish
26.22 mi14:08:023:37:168:1810:33
10:21
#14256
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallMalesM55-59Seg. OverallSeg. MalesSeg. M55-59
5K3.11 mi3.11 mi7193642264229322(Top 35%)7758(Top 51%)7758(Top 546%)
10K6.21 mi3.10 mi8015-8226974-5526974-5529031(Top 34%)7602(Top 50%)7602(Top 535%)
15K9.32 mi3.11 mi8389-3747205-2317205-2319322(Top 35%)7758(Top 51%)7758(Top 546%)
20K12.43 mi3.11 mi8794-4057434-2297434-22910260(Top 39%)8221(Top 54%)8221(Top 578%)
Half13.11 mi0.68 mi8858-647468-347468-3410237(Top 38%)8249(Top 54%)8249(Top 580%)
25K15.53 mi2.42 mi9332-4747743-2757743-27512007(Top 45%)8917(Top 59%)8917(Top 627%)
30K18.64 mi3.11 mi10410-10788290-5478290-54715059(Top 57%)10073(Top 66%)10073(Top 708%)
20M20.00 mi1.36 mi10926-5168518-2288518-22816656(Top 63%)10681(Top 70%)10681(Top 751%)
21M21.00 mi1.00 mi11510-5848759-2418759-24118183(Top 68%)11293(Top 74%)11293(Top 794%)
35K21.75 mi0.75 mi11762-2528855-968855-9616552(Top 62%)10504(Top 69%)10504(Top 739%)
23M23.00 mi1.25 mi12393-6319104-2499104-24919363(Top 73%)11721(Top 77%)11721(Top 824%)
24M24.00 mi1.00 mi12954-5619318-2149318-21420728(Top 78%)12301(Top 81%)12301(Top 865%)
40K24.85 mi0.85 mi13451-4979504-1869504-18621212(Top 80%)12454(Top 82%)12454(Top 876%)
25.2M25.20 mi0.35 mi13673-2229585-819585-8121196(Top 80%)12462(Top 82%)12462(Top 876%)
Finish26.22 mi1.02 mi14256-5839778-1939778-19322675(Top 85%)13160(Top 87%)13160(Top 925%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21story building
+97ft-345ft

Overall

9322

Males

7758

M55-59

7758

5K→10K

3.1 - 6.2 mi

Top 34%
×5story building
+79ft-138ft

Overall

9031

Males

7602

M55-59

7602

10K→15K

6.2 - 9.3 mi

Top 35%
×3story building
+67ft-78ft

Overall

9322

Males

7758

M55-59

7758

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

10260

Males

8221

M55-59

8221

20K→Half

12.4 - 13.1 mi

Top 38%
×2story building
+19ft-37ft

Overall

10237

Males

8249

M55-59

8249

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

12007

Males

8917

M55-59

8917

25K→30K

15.5 - 18.6 mi

Top 57%
×9story building
+181ft-148ft

Overall

15059

Males

10073

M55-59

10073

30K→20M

18.6 - 20.0 mi

Top 63%
×5story building
+64ft-50ft

Overall

16656

Males

10681

M55-59

10681

20M→21M

20.0 - 21.0 mi

Top 68%
×8story building
+106ft-24ft

Overall

18183

Males

11293

M55-59

11293

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

16552

Males

10504

M55-59

10504

35K→23M

21.8 - 23.0 mi

Top 73%
×5story building
+23ft-63ft

Overall

19363

Males

11721

M55-59

11721

23M→24M

23.0 - 24.0 mi

Top 78%
×6story building
+12ft-82ft

Overall

20728

Males

12301

M55-59

12301

24M→40K

24.0 - 24.9 mi

Top 80%
×1story
+6ft-20ft

Overall

21212

Males

12454

M55-59

12454

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

21196

Males

12462

M55-59

12462

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2story building
+22ft-21ft

Overall

22675

Males

13160

M55-59

13160

Passing Analysis

Category:
Athletes Passed
249*
Passed By
7311
Net Change
-7063
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#7193
5K → 10K39861-822#7193#8015
10K → 15K43417-374#8015#8389
15K → 20K46451-405#8389#8794
20K → Half973-64#8794#8858
Half → 25K21495-474#8858#9332
25K → 30K231100-1078#9332#10410
30K → 20M12*528-516#10410#10926
20M → 21M13597-584#10926#11510
21M → 35K7259-252#11510#11762
35K → 23M14645-631#11762#12393
23M → 24M6567-561#12393#12954
24M → 40K9506-497#12954#13451
40K → 25.2M2224-222#13451#13673
25.2M → Finish5588-583#13673#14256
TOTALS249*7311-7063

* 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