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BOSTON MARATHON 2023

Hon Sze Cecilia Chan

Bib: 31998•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Division (F50-54)
#0 / 1207
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:44
Rank: #22294
Start → 5K
29:44 | 9:34/mi
10K· 6.21 mi
57:51
Rank: #21762 (+532)
5K → 10K
28:07 | 9:03/mi
15K· 9.32 mi
1:26:19
Rank: #21572 (+190)
10K → 15K
28:28 | 9:10/mi
20K· 12.43 mi
1:57:08
Rank: #21875 (-303)
15K → 20K
30:49 | 9:55/mi
Half· 13.11 mi
2:03:13
Rank: #21796 (+79)
20K → Half
6:05 | 8:55/mi
25K· 15.53 mi
2:25:38
Rank: #21521 (+275)
Half → 25K
22:25 | 9:15/mi
30K· 18.64 mi
2:57:56
Rank: #21608 (-87)
25K → 30K
32:18 | 10:24/mi
20M
3:11:14
Rank: #21497 (+111)
30K → 20M
13:18 | 9:47/mi
21M
3:21:52
Rank: #21381 (+116)
20M → 21M
10:38 | 10:38/mi
35K· 21.75 mi
3:29:11
Rank: #21346 (+35)
21M → 35K
7:19 | 9:47/mi
23M
3:41:23
Rank: #21208 (+138)
35K → 23M
12:12 | 9:45/mi
24M
3:50:59
Rank: #21124 (+84)
23M → 24M
9:36 | 9:36/mi
40K· 24.85 mi
3:59:21
Rank: #21052 (+72)
24M → 40K
8:22 | 9:47/mi
25.2M
4:03:15
Rank: #21061 (-9)
40K → 25.2M
3:54 | 11:19/mi
Finish· 26.22 mi
4:12:47
Rank: #20996 (+65)
25.2M → Finish
9:32 | 9:21/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:03:13
Pace9:24 /mi
2nd Half
Distance13.11 mi
Time2:09:34
Pace9:53 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:0129:449:3429:44
9:34
-
10K
6.21 mi12:17:0857:519:1928:07
9:03
-0:31
15K
9.32 mi12:45:361:26:199:1628:28
9:10
+0:07
20K
12.43 mi13:16:251:57:089:2630:49
9:55
+0:45
Half
13.11 mi13:22:302:03:139:246:05
8:55
-1:00
25K
15.53 mi13:44:552:25:389:2222:25
9:15
+0:20
30K
18.64 mi14:17:132:57:569:3332:18
10:24
+1:09
20M
20.00 mi14:30:313:11:149:3413:18
9:47
-0:37
21M
21.00 mi14:41:093:21:529:3710:38
10:38
+0:51
35K
21.75 mi14:48:283:29:119:377:19
9:47
-0:51
23M
23.00 mi15:00:403:41:239:3812:12
9:45
-0:02
24M
24.00 mi15:10:163:50:599:379:36
9:36
-0:09
40K
24.85 mi15:18:383:59:219:388:22
9:47
+0:11
25.2M
25.20 mi15:22:324:03:159:393:54
11:19
+1:32
Finish
26.22 mi15:32:044:12:479:399:32
9:21
-1:58

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

8:55 /mi

Average Pace

9:39 /mi

Slowest Pace

11:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:34:37

37% of race

Time at Steady Pace

1:51:20

44% of race

Time at Slower Pace

46:50

19% of race

Average Pace: 9:38 /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 mi11:49:0129:449:3429:44
9:34
#22294
10K
6.21 mi12:17:0857:519:1928:07
9:03
#21762
15K
9.32 mi12:45:361:26:199:1628:28
9:10
#21572
20K
12.43 mi13:16:251:57:089:2630:49
9:55
#21875
Half
13.11 mi13:22:302:03:139:246:05
8:55
#21796
25K
15.53 mi13:44:552:25:389:2222:25
9:15
#21521
30K
18.64 mi14:17:132:57:569:3332:18
10:24
#21608
20M
20.00 mi14:30:313:11:149:3413:18
9:47
#21497
21M
21.00 mi14:41:093:21:529:3710:38
10:38
#21381
35K
21.75 mi14:48:283:29:119:377:19
9:47
#21346
23M
23.00 mi15:00:403:41:239:3812:12
9:45
#21208
24M
24.00 mi15:10:163:50:599:379:36
9:36
#21124
40K
24.85 mi15:18:383:59:219:388:22
9:47
#21052
25.2M
25.20 mi15:22:324:03:159:393:54
11:19
#21061
Finish
26.22 mi15:32:044:12:479:399:32
9:21
#20996
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi222949027902721181(Top 80%)8330(Top 73%)8330(Top 690%)
10K6.21 mi3.10 mi21762+5328723+3048723+30421077(Top 79%)8310(Top 73%)8310(Top 688%)
15K9.32 mi3.11 mi21572+1908601+1228601+12221181(Top 80%)8330(Top 73%)8330(Top 690%)
20K12.43 mi3.11 mi21875-3038759-1588759-15822706(Top 85%)9191(Top 80%)9191(Top 761%)
Half13.11 mi0.68 mi21796+798707+528707+5220118(Top 76%)7745(Top 68%)7745(Top 642%)
25K15.53 mi2.42 mi21521+2758556+1518556+15120022(Top 75%)7707(Top 67%)7707(Top 639%)
30K18.64 mi3.11 mi21608-878618-628618-6221995(Top 83%)8905(Top 78%)8905(Top 738%)
20M20.00 mi1.36 mi21497+1118562+568562+5619827(Top 74%)7765(Top 68%)7765(Top 643%)
21M21.00 mi1.00 mi21381+1168515+478515+4719987(Top 75%)7926(Top 69%)7926(Top 657%)
35K21.75 mi0.75 mi21346+358503+128503+1220703(Top 78%)8334(Top 73%)8334(Top 690%)
23M23.00 mi1.25 mi21208+1388448+558448+5519254(Top 72%)7562(Top 66%)7562(Top 627%)
24M24.00 mi1.00 mi21124+848415+338415+3319590(Top 74%)7760(Top 68%)7760(Top 643%)
40K24.85 mi0.85 mi21052+728389+268389+2619378(Top 73%)7705(Top 67%)7705(Top 638%)
25.2M25.20 mi0.35 mi21061-98397-88397-821158(Top 79%)8680(Top 76%)8680(Top 719%)
Finish26.22 mi1.02 mi20996+658370+278370+2719626(Top 74%)7798(Top 68%)7798(Top 646%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

21181

Females

8330

F50-54

8330

5K→10K

3.1 - 6.2 mi

Top 79%
×5stories
+79ft-138ft

Overall

21077

Females

8310

F50-54

8310

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

21181

Females

8330

F50-54

8330

15K→20K

9.3 - 12.4 mi

Top 85%
×5stories
+106ft-86ft

Overall

22706

Females

9191

F50-54

9191

20K→Half

12.4 - 13.1 mi

Top 76%
×2stories
+19ft-37ft

Overall

20118

Females

7745

F50-54

7745

Half→25K

13.1 - 15.5 mi

Top 75%
×4stories
+66ft-88ft

Overall

20022

Females

7707

F50-54

7707

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

21995

Females

8905

F50-54

8905

30K→20M

18.6 - 20.0 mi

Top 74%
×5stories
+64ft-50ft

Overall

19827

Females

7765

F50-54

7765

20M→21M

20.0 - 21.0 mi

Top 75%
×8stories
+106ft-24ft

Overall

19987

Females

7926

F50-54

7926

21M→35K

21.0 - 21.8 mi

Top 78%
×7stories
+17ft-86ft

Overall

20703

Females

8334

F50-54

8334

35K→23M

21.8 - 23.0 mi

Top 72%
×5stories
+23ft-63ft

Overall

19254

Females

7562

F50-54

7562

23M→24M

23.0 - 24.0 mi

Top 74%
×6stories
+12ft-82ft

Overall

19590

Females

7760

F50-54

7760

24M→40K

24.0 - 24.9 mi

Top 73%
×1story
+6ft-20ft

Overall

19378

Females

7705

F50-54

7705

40K→25.2M

24.9 - 25.2 mi

Top 79%
×1story
+13ft-16ft

Overall

21158

Females

8680

F50-54

8680

25.2M→Finish

25.2 - 26.2 mi

Top 74%
×2stories
+22ft-21ft

Overall

19626

Females

7798

F50-54

7798

Passing Analysis

Category:
Athletes Passed
2127
Passed By
829
Net Change
+1298
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22294
5K → 10K61684+532#22294#21762
10K → 15K27686+190#21762#21572
15K → 20K46349-303#21572#21875
20K → Half834+79#21875#21796
Half → 25K2827+275#21796#21521
25K → 30K105192-87#21521#21608
30K → 20M1198+111#21608#21497
20M → 21M13014+116#21497#21381
21M → 35K4712+35#21381#21346
35K → 23M14911+138#21346#21208
23M → 24M9511+84#21208#21124
24M → 40K8412+72#21124#21052
40K → 25.2M1726-9#21052#21061
25.2M → Finish7813+65#21061#20996
TOTALS2127829+1298
📊

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