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BOSTON MARATHON 2023

Man Ching Lee

Bib: 20865•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Top 39%
Masters (Masters Women)
#0 / 6539
Top 26%
Division (F45-49)
#0 / 1817
Top 28%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:46
Rank: #16102
Start → 5K
25:46 | 8:18/mi
10K· 6.21 mi
51:35
Rank: #16516 (-414)
5K → 10K
25:49 | 8:19/mi
15K· 9.32 mi
1:17:03
Rank: #16286 (+230)
10K → 15K
25:28 | 8:12/mi
20K· 12.43 mi
1:42:37
Rank: #15963 (+323)
15K → 20K
25:34 | 8:14/mi
Half· 13.11 mi
1:48:07
Rank: #15898 (+65)
20K → Half
5:30 | 8:04/mi
25K· 15.53 mi
2:08:12
Rank: #15708 (+190)
Half → 25K
20:05 | 8:17/mi
30K· 18.64 mi
2:34:12
Rank: #15275 (+433)
25K → 30K
26:00 | 8:22/mi
20M
2:45:33
Rank: #15079 (+196)
30K → 20M
11:21 | 8:21/mi
21M
2:54:20
Rank: #14902 (+177)
20M → 21M
8:47 | 8:47/mi
35K· 21.75 mi
3:00:23
Rank: #14810 (+92)
21M → 35K
6:03 | 8:05/mi
23M
3:10:45
Rank: #14617 (+193)
35K → 23M
10:22 | 8:17/mi
24M
3:18:43
Rank: #14449 (+168)
23M → 24M
7:58 | 7:58/mi
40K· 24.85 mi
3:25:42
Rank: #14313 (+136)
24M → 40K
6:59 | 8:10/mi
25.2M
3:28:45
Rank: #14257 (+56)
40K → 25.2M
3:03 | 8:51/mi
Finish· 26.22 mi
3:37:05
Rank: #14212 (+45)
25.2M → Finish
8:20 | 8:11/mi

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:48:07
Pace8:15 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:48:58
Pace8:19 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:0725:468:1825:46
8:18
-
10K
6.21 mi11:46:5651:358:1825:49
8:19
+0:01
15K
9.32 mi12:12:241:17:038:1625:28
8:12
-0:07
20K
12.43 mi12:37:581:42:378:1525:34
8:14
+0:02
Half
13.11 mi12:43:281:48:078:155:30
8:04
-0:10
25K
15.53 mi13:03:332:08:128:1520:05
8:17
+0:13
30K
18.64 mi13:29:332:34:128:1626:00
8:22
+0:05
20M
20.00 mi13:40:542:45:338:1711:21
8:21
-0:01
21M
21.00 mi13:49:412:54:208:188:47
8:47
+0:26
35K
21.75 mi13:55:443:00:238:186:03
8:05
-0:42
23M
23.00 mi14:06:063:10:458:1810:22
8:17
+0:12
24M
24.00 mi14:14:043:18:438:177:58
7:58
-0:19
40K
24.85 mi14:21:033:25:428:176:59
8:10
+0:12
25.2M
25.20 mi14:24:063:28:458:173:03
8:51
+0:41
Finish
26.22 mi14:32:263:37:058:178:20
8:11
-0:40

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

7:58 /mi

Average Pace

8:17 /mi

Slowest Pace

8:51 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:25:15

95% of race

Time at Steady Pace

11:50

5% of race

Time at Slower Pace

0:00

0% 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 mi11:21:0725:468:1825:46
8:18
#16102
10K
6.21 mi11:46:5651:358:1825:49
8:19
#16516
15K
9.32 mi12:12:241:17:038:1625:28
8:12
#16286
20K
12.43 mi12:37:581:42:378:1525:34
8:14
#15963
Half
13.11 mi12:43:281:48:078:155:30
8:04
#15898
25K
15.53 mi13:03:332:08:128:1520:05
8:17
#15708
30K
18.64 mi13:29:332:34:128:1626:00
8:22
#15275
20M
20.00 mi13:40:542:45:338:1711:21
8:21
#15079
21M
21.00 mi13:49:412:54:208:188:47
8:47
#14902
35K
21.75 mi13:55:443:00:238:186:03
8:05
#14810
23M
23.00 mi14:06:063:10:458:1810:22
8:17
#14617
24M
24.00 mi14:14:043:18:438:177:58
7:58
#14449
40K
24.85 mi14:21:033:25:428:176:59
8:10
#14313
25.2M
25.20 mi14:24:063:28:458:173:03
8:51
#14257
Finish
26.22 mi14:32:263:37:058:178:20
8:11
#14212
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi161025346534615849(Top 60%)5195(Top 45%)5195(Top 286%)
10K6.21 mi3.10 mi16516-4145586-2405586-24016999(Top 64%)5869(Top 51%)5869(Top 323%)
15K9.32 mi3.11 mi16286+2305456+1305456+13015849(Top 60%)5195(Top 45%)5195(Top 286%)
20K12.43 mi3.11 mi15963+3235283+1735283+17315148(Top 57%)4799(Top 42%)4799(Top 264%)
Half13.11 mi0.68 mi15898+655242+415242+4114907(Top 56%)4627(Top 41%)4627(Top 255%)
25K15.53 mi2.42 mi15708+1905154+885154+8814847(Top 56%)4729(Top 41%)4729(Top 260%)
30K18.64 mi3.11 mi15275+4334926+2284926+22813491(Top 51%)4022(Top 35%)4022(Top 221%)
20M20.00 mi1.36 mi15079+1964822+1044822+10412747(Top 48%)3718(Top 33%)3718(Top 205%)
21M21.00 mi1.00 mi14902+1774731+914731+9112195(Top 46%)3516(Top 31%)3516(Top 194%)
35K21.75 mi0.75 mi14810+924690+414690+4112756(Top 48%)3863(Top 34%)3863(Top 213%)
23M23.00 mi1.25 mi14617+1934595+954595+9511785(Top 44%)3407(Top 30%)3407(Top 188%)
24M24.00 mi1.00 mi14449+1684523+724523+7211059(Top 42%)3132(Top 27%)3132(Top 172%)
40K24.85 mi0.85 mi14313+1364465+584465+5811196(Top 42%)3266(Top 29%)3266(Top 180%)
25.2M25.20 mi0.35 mi14257+564441+244441+2411690(Top 44%)3586(Top 31%)3586(Top 197%)
Finish26.22 mi1.02 mi14212+454431+104431+1013314(Top 50%)4373(Top 38%)4373(Top 241%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 60%
×21stories
+97ft-345ft

Overall

15849

Females

5195

F45-49

5195

5K→10K

3.1 - 6.2 mi

Top 64%
×5stories
+79ft-138ft

Overall

16999

Females

5869

F45-49

5869

10K→15K

6.2 - 9.3 mi

Top 60%
×3stories
+67ft-78ft

Overall

15849

Females

5195

F45-49

5195

15K→20K

9.3 - 12.4 mi

Top 57%
×5stories
+106ft-86ft

Overall

15148

Females

4799

F45-49

4799

20K→Half

12.4 - 13.1 mi

Top 56%
×2stories
+19ft-37ft

Overall

14907

Females

4627

F45-49

4627

Half→25K

13.1 - 15.5 mi

Top 56%
×4stories
+66ft-88ft

Overall

14847

Females

4729

F45-49

4729

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

13491

Females

4022

F45-49

4022

30K→20M

18.6 - 20.0 mi

Top 48%
×5stories
+64ft-50ft

Overall

12747

Females

3718

F45-49

3718

20M→21M

20.0 - 21.0 mi

Top 46%
×8stories
+106ft-24ft

Overall

12195

Females

3516

F45-49

3516

21M→35K

21.0 - 21.8 mi

Top 48%
×7stories
+17ft-86ft

Overall

12756

Females

3863

F45-49

3863

35K→23M

21.8 - 23.0 mi

Top 44%
×5stories
+23ft-63ft

Overall

11785

Females

3407

F45-49

3407

23M→24M

23.0 - 24.0 mi

Top 42%
×6stories
+12ft-82ft

Overall

11059

Females

3132

F45-49

3132

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

11196

Females

3266

F45-49

3266

40K→25.2M

24.9 - 25.2 mi

Top 44%
×1story
+13ft-16ft

Overall

11690

Females

3586

F45-49

3586

25.2M→Finish

25.2 - 26.2 mi

Top 50%
×2stories
+22ft-21ft

Overall

13314

Females

4373

F45-49

4373

Passing Analysis

Category:
Athletes Passed
2761
Passed By
871
Net Change
+1890
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16102
5K → 10K147561-414#16102#16516
10K → 15K32696+230#16516#16286
15K → 20K36441+323#16286#15963
20K → Half749+65#15963#15898
Half → 25K23040+190#15898#15708
25K → 30K45017+433#15708#15275
30K → 20M20812+196#15275#15079
20M → 21M18710+177#15079#14902
21M → 35K10311+92#14902#14810
35K → 23M20411+193#14810#14617
23M → 24M1779+168#14617#14449
24M → 40K1415+136#14449#14313
40K → 25.2M593+56#14313#14257
25.2M → Finish9146+45#14257#14212
TOTALS2761871+1890
📊

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