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BOSTON MARATHON 2023

Yanxing Ma

Bib: 8111•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Top 10%
Gender (Female)
#0 / 11423
Top 1%
Masters (Masters Women)
#0 / 6539
Top 0.3%
Division (F45-49)
#0 / 1817
Top 0.2%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
19:23
Rank: #1247
Start → 5K
19:23 | 6:14/mi
10K· 6.21 mi
39:01
Rank: #1491 (-244)
5K → 10K
19:38 | 6:19/mi
15K· 9.32 mi
59:19
Rank: #1848 (-357)
10K → 15K
20:18 | 6:32/mi
20K· 12.43 mi
1:20:10
Rank: #2202 (-354)
15K → 20K
20:51 | 6:43/mi
Half· 13.11 mi
1:24:42
Rank: #2262 (-60)
20K → Half
4:32 | 6:39/mi
25K· 15.53 mi
1:41:03
Rank: #2439 (-177)
Half → 25K
16:21 | 6:45/mi
30K· 18.64 mi
2:02:41
Rank: #2648 (-209)
25K → 30K
21:38 | 6:58/mi
20M
2:12:12
Rank: #2697 (-49)
30K → 20M
9:31 | 7:00/mi
21M
2:19:28
Rank: #2689 (+8)
20M → 21M
7:16 | 7:16/mi
35K· 21.75 mi
2:24:28
Rank: #2703 (-14)
21M → 35K
5:00 | 6:41/mi
23M
2:33:06
Rank: #2705 (-2)
35K → 23M
8:38 | 6:54/mi
24M
2:39:42
Rank: #2666 (+39)
23M → 24M
6:36 | 6:36/mi
40K· 24.85 mi
2:45:30
Rank: #2652 (+14)
24M → 40K
5:48 | 6:47/mi
25.2M
2:48:03
Rank: #2652
40K → 25.2M
2:33 | 7:24/mi
Finish· 26.22 mi
2:55:00
Rank: #2691 (-39)
25.2M → Finish
6:57 | 6:49/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:24:42
Pace6:28 /mi
2nd Half
Distance13.11 mi
Time1:30:18
Pace6:53 /mi
📊Positive Split: 6.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:44:3619:236:1419:23
6:14
-
10K
6.21 mi11:04:1439:016:1719:38
6:19
+0:05
15K
9.32 mi11:24:3259:196:2220:18
6:32
+0:13
20K
12.43 mi11:45:231:20:106:2720:51
6:43
+0:11
Half
13.11 mi11:49:551:24:426:284:32
6:39
-0:04
25K
15.53 mi12:06:161:41:036:3016:21
6:45
+0:06
30K
18.64 mi12:27:542:02:416:3521:38
6:58
+0:13
20M
20.00 mi12:37:252:12:126:379:31
7:00
+0:02
21M
21.00 mi12:44:412:19:286:387:16
7:16
+0:16
35K
21.75 mi12:49:412:24:286:395:00
6:41
-0:35
23M
23.00 mi12:58:192:33:066:398:38
6:54
+0:13
24M
24.00 mi13:04:552:39:426:396:36
6:36
-0:18
40K
24.85 mi13:10:432:45:306:405:48
6:47
+0:11
25.2M
25.20 mi13:13:162:48:036:402:33
7:24
+0:37
Finish
26.22 mi13:20:132:55:006:416:57
6:49
-0:35

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

6:14 /mi

Average Pace

6:41 /mi

Slowest Pace

7:24 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:05:24

72% of race

Time at Steady Pace

47:03

27% of race

Time at Slower Pace

2:33

1% of race

Average Pace: 6:40 /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 mi10:44:3619:236:1419:23
6:14
#1247
10K
6.21 mi11:04:1439:016:1719:38
6:19
#1491
15K
9.32 mi11:24:3259:196:2220:18
6:32
#1848
20K
12.43 mi11:45:231:20:106:2720:51
6:43
#2202
Half
13.11 mi11:49:551:24:426:284:32
6:39
#2262
25K
15.53 mi12:06:161:41:036:3016:21
6:45
#2439
30K
18.64 mi12:27:542:02:416:3521:38
6:58
#2648
20M
20.00 mi12:37:252:12:126:379:31
7:00
#2697
21M
21.00 mi12:44:412:19:286:387:16
7:16
#2689
35K
21.75 mi12:49:412:24:286:395:00
6:41
#2703
23M
23.00 mi12:58:192:33:066:398:38
6:54
#2705
24M
24.00 mi13:04:552:39:426:396:36
6:36
#2666
40K
24.85 mi13:10:432:45:306:405:48
6:47
#2652
25.2M
25.20 mi13:13:162:48:036:402:33
7:24
#2652
Finish
26.22 mi13:20:132:55:006:416:57
6:49
#2691
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi124764642864(Top 11%)125(Top 1%)125(Top 7%)
10K6.21 mi3.10 mi1491-24468-468-41854(Top 7%)78(Top 0.7%)78(Top 4%)
15K9.32 mi3.11 mi1848-35779-1179-112864(Top 11%)125(Top 1%)125(Top 7%)
20K12.43 mi3.11 mi2202-35491-1291-123679(Top 14%)195(Top 2%)195(Top 11%)
Half13.11 mi0.68 mi2262-6092-192-13905(Top 15%)217(Top 2%)217(Top 12%)
25K15.53 mi2.42 mi2439-177100-8100-83718(Top 14%)214(Top 2%)214(Top 12%)
30K18.64 mi3.11 mi2648-209118-18118-184112(Top 15%)271(Top 2%)271(Top 15%)
20M20.00 mi1.36 mi2697-491181184077(Top 15%)298(Top 3%)298(Top 16%)
21M21.00 mi1.00 mi2689+81181183470(Top 13%)241(Top 2%)241(Top 13%)
35K21.75 mi0.75 mi2703-141181183516(Top 13%)248(Top 2%)248(Top 14%)
23M23.00 mi1.25 mi2705-2119-1119-13225(Top 12%)222(Top 2%)222(Top 12%)
24M24.00 mi1.00 mi2666+39120-1120-12598(Top 10%)171(Top 1%)171(Top 9%)
40K24.85 mi0.85 mi2652+141201202780(Top 10%)215(Top 2%)215(Top 12%)
25.2M25.20 mi0.35 mi2652122-2122-23455(Top 13%)318(Top 3%)318(Top 18%)
Finish26.22 mi1.02 mi2691-39128-6128-64211(Top 16%)497(Top 4%)497(Top 27%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 11%
×21stories
+97ft-345ft

Overall

2864

Females

125

F45-49

125

5K→10K

3.1 - 6.2 mi

Top 7%
×5stories
+79ft-138ft

Overall

1854

Females

78

F45-49

78

10K→15K

6.2 - 9.3 mi

Top 11%
×3stories
+67ft-78ft

Overall

2864

Females

125

F45-49

125

15K→20K

9.3 - 12.4 mi

Top 14%
×5stories
+106ft-86ft

Overall

3679

Females

195

F45-49

195

20K→Half

12.4 - 13.1 mi

Top 15%
×2stories
+19ft-37ft

Overall

3905

Females

217

F45-49

217

Half→25K

13.1 - 15.5 mi

Top 14%
×4stories
+66ft-88ft

Overall

3718

Females

214

F45-49

214

25K→30K

15.5 - 18.6 mi

Top 15%
×9stories
+181ft-148ft

Overall

4112

Females

271

F45-49

271

30K→20M

18.6 - 20.0 mi

Top 15%
×5stories
+64ft-50ft

Overall

4077

Females

298

F45-49

298

20M→21M

20.0 - 21.0 mi

Top 13%
×8stories
+106ft-24ft

Overall

3470

Females

241

F45-49

241

21M→35K

21.0 - 21.8 mi

Top 13%
×7stories
+17ft-86ft

Overall

3516

Females

248

F45-49

248

35K→23M

21.8 - 23.0 mi

Top 12%
×5stories
+23ft-63ft

Overall

3225

Females

222

F45-49

222

23M→24M

23.0 - 24.0 mi

Top 10%
×6stories
+12ft-82ft

Overall

2598

Females

171

F45-49

171

24M→40K

24.0 - 24.9 mi

Top 10%
×1story
+6ft-20ft

Overall

2780

Females

215

F45-49

215

40K→25.2M

24.9 - 25.2 mi

Top 13%
×1story
+13ft-16ft

Overall

3455

Females

318

F45-49

318

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4211

Females

497

F45-49

497

Passing Analysis

Category:
Athletes Passed
343
Passed By
1787
Net Change
-1444
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1247
5K → 10K13257-244#1247#1491
10K → 15K6363-357#1491#1848
15K → 20K12366-354#1848#2202
20K → Half262-60#2202#2262
Half → 25K14191-177#2262#2439
25K → 30K19228-209#2439#2648
30K → 20M2877-49#2648#2697
20M → 21M3527+8#2697#2689
21M → 35K2034-14#2689#2703
35K → 23M5052-2#2703#2705
23M → 24M6728+39#2705#2666
24M → 40K3824+14#2666#2652
40K → 25.2M12120#2652#2652
25.2M → Finish2766-39#2652#2691
TOTALS3431787-1444
📊

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