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BOSTON MARATHON 2023

Emily Hsieh

Bib: 30683•F

CA

0:00
0:00
/ mi
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Division (F18-39)
#0 / 4884
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
33:03
Rank: #25043
Start → 5K
33:03 | 10:38/mi
10K· 6.21 mi
1:04:37
Rank: #24484 (+559)
5K → 10K
31:34 | 10:10/mi
15K· 9.32 mi
1:36:06
Rank: #24239 (+245)
10K → 15K
31:29 | 10:08/mi
20K· 12.43 mi
2:07:45
Rank: #23978 (+261)
15K → 20K
31:39 | 10:11/mi
Half· 13.11 mi
2:14:30
Rank: #23921 (+57)
20K → Half
6:45 | 9:54/mi
25K· 15.53 mi
2:38:53
Rank: #23653 (+268)
Half → 25K
24:23 | 10:03/mi
30K· 18.64 mi
3:11:11
Rank: #23347 (+306)
25K → 30K
32:18 | 10:24/mi
20M
3:25:17
Rank: #23207 (+140)
30K → 20M
14:06 | 10:23/mi
21M
3:36:12
Rank: #23084 (+123)
20M → 21M
10:55 | 10:55/mi
35K· 21.75 mi
3:43:42
Rank: #23027 (+57)
21M → 35K
7:30 | 10:01/mi
23M
3:57:01
Rank: #22926 (+101)
35K → 23M
13:19 | 10:38/mi
24M
4:07:47
Rank: #22901 (+25)
23M → 24M
10:46 | 10:46/mi
40K· 24.85 mi
4:16:42
Rank: #22840 (+61)
24M → 40K
8:55 | 10:26/mi
25.2M
4:20:33
Rank: #22822 (+18)
40K → 25.2M
3:51 | 11:10/mi
Finish· 26.22 mi
4:30:38
Rank: #22777 (+45)
25.2M → Finish
10:05 | 9:54/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:30
Pace10:16 /mi
2nd Half
Distance13.11 mi
Time2:16:08
Pace10:23 /mi
📊Positive Split: 1.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:1133:0310:3833:03
10:38
-
10K
6.21 mi12:24:451:04:3710:2431:34
10:10
-0:28
15K
9.32 mi12:56:141:36:0610:1931:29
10:08
-0:02
20K
12.43 mi13:27:532:07:4510:1731:39
10:11
+0:03
Half
13.11 mi13:34:382:14:3010:166:45
9:54
-0:17
25K
15.53 mi13:59:012:38:5310:1424:23
10:03
+0:09
30K
18.64 mi14:31:193:11:1110:1532:18
10:24
+0:21
20M
20.00 mi14:45:253:25:1710:1614:06
10:23
-0:01
21M
21.00 mi14:56:203:36:1210:1810:55
10:55
+0:32
35K
21.75 mi15:03:503:43:4210:177:30
10:01
-0:54
23M
23.00 mi15:17:093:57:0110:1813:19
10:38
+0:37
24M
24.00 mi15:27:554:07:4710:1910:46
10:46
+0:08
40K
24.85 mi15:36:504:16:4210:208:55
10:26
-0:20
25.2M
25.20 mi15:40:414:20:3310:203:51
11:10
+0:44
Finish
26.22 mi15:50:464:30:3810:2010:05
9:54
-1:16

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

9:54 /mi

Average Pace

10:20 /mi

Slowest Pace

11:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

4:15:52

95% of race

Time at Steady Pace

14:46

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 10:19 /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 mi11:53:1133:0310:3833:03
10:38
#25043
10K
6.21 mi12:24:451:04:3710:2431:34
10:10
#24484
15K
9.32 mi12:56:141:36:0610:1931:29
10:08
#24239
20K
12.43 mi13:27:532:07:4510:1731:39
10:11
#23978
Half
13.11 mi13:34:382:14:3010:166:45
9:54
#23921
25K
15.53 mi13:59:012:38:5310:1424:23
10:03
#23653
30K
18.64 mi14:31:193:11:1110:1532:18
10:24
#23347
20M
20.00 mi14:45:253:25:1710:1614:06
10:23
#23207
21M
21.00 mi14:56:203:36:1210:1810:55
10:55
#23084
35K
21.75 mi15:03:503:43:4210:177:30
10:01
#23027
23M
23.00 mi15:17:093:57:0110:1813:19
10:38
#22926
24M
24.00 mi15:27:554:07:4710:1910:46
10:46
#22901
40K
24.85 mi15:36:504:16:4210:208:55
10:26
#22840
25.2M
25.20 mi15:40:414:20:3310:203:51
11:10
#22822
Finish
26.22 mi15:50:464:30:3810:2010:05
9:54
#22777
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi25043104551045523761(Top 89%)9755(Top 85%)9755(Top 200%)
10K6.21 mi3.10 mi24484+55910150+30510150+30524049(Top 90%)9914(Top 87%)9914(Top 203%)
15K9.32 mi3.11 mi24239+24510022+12810022+12823761(Top 89%)9755(Top 85%)9755(Top 200%)
20K12.43 mi3.11 mi23978+2619878+1449878+14423268(Top 87%)9496(Top 83%)9496(Top 194%)
Half13.11 mi0.68 mi23921+579846+329846+3223082(Top 87%)9395(Top 82%)9395(Top 192%)
25K15.53 mi2.42 mi23653+2689706+1409706+14022349(Top 84%)9031(Top 79%)9031(Top 185%)
30K18.64 mi3.11 mi23347+3069562+1449562+14422000(Top 83%)8910(Top 78%)8910(Top 182%)
20M20.00 mi1.36 mi23207+1409503+599503+5921480(Top 81%)8692(Top 76%)8692(Top 178%)
21M21.00 mi1.00 mi23084+1239450+539450+5320654(Top 78%)8272(Top 72%)8272(Top 169%)
35K21.75 mi0.75 mi23027+579426+249426+2421368(Top 80%)8698(Top 76%)8698(Top 178%)
23M23.00 mi1.25 mi22926+1019387+399387+3921643(Top 81%)8875(Top 78%)8875(Top 182%)
24M24.00 mi1.00 mi22901+259382+59382+522615(Top 85%)9429(Top 83%)9429(Top 193%)
40K24.85 mi0.85 mi22840+619357+259357+2521066(Top 79%)8655(Top 76%)8655(Top 177%)
25.2M25.20 mi0.35 mi22822+189348+99348+920877(Top 78%)8529(Top 75%)8529(Top 175%)
Finish26.22 mi1.02 mi22777+459330+189330+1821487(Top 81%)8843(Top 77%)8843(Top 181%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21stories
+97ft-345ft

Overall

23761

Females

9755

F18-39

9755

5K→10K

3.1 - 6.2 mi

Top 90%
×5stories
+79ft-138ft

Overall

24049

Females

9914

F18-39

9914

10K→15K

6.2 - 9.3 mi

Top 89%
×3stories
+67ft-78ft

Overall

23761

Females

9755

F18-39

9755

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

23268

Females

9496

F18-39

9496

20K→Half

12.4 - 13.1 mi

Top 87%
×2stories
+19ft-37ft

Overall

23082

Females

9395

F18-39

9395

Half→25K

13.1 - 15.5 mi

Top 84%
×4stories
+66ft-88ft

Overall

22349

Females

9031

F18-39

9031

25K→30K

15.5 - 18.6 mi

Top 83%
×9stories
+181ft-148ft

Overall

22000

Females

8910

F18-39

8910

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

21480

Females

8692

F18-39

8692

20M→21M

20.0 - 21.0 mi

Top 78%
×8stories
+106ft-24ft

Overall

20654

Females

8272

F18-39

8272

21M→35K

21.0 - 21.8 mi

Top 80%
×7stories
+17ft-86ft

Overall

21368

Females

8698

F18-39

8698

35K→23M

21.8 - 23.0 mi

Top 81%
×5stories
+23ft-63ft

Overall

21643

Females

8875

F18-39

8875

23M→24M

23.0 - 24.0 mi

Top 85%
×6stories
+12ft-82ft

Overall

22615

Females

9429

F18-39

9429

24M→40K

24.0 - 24.9 mi

Top 79%
×1story
+6ft-20ft

Overall

21066

Females

8655

F18-39

8655

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

20877

Females

8529

F18-39

8529

25.2M→Finish

25.2 - 26.2 mi

Top 81%
×2stories
+22ft-21ft

Overall

21487

Females

8843

F18-39

8843

Passing Analysis

Category:
Athletes Passed
2447
Passed By
181
Net Change
+2266
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#25043
5K → 10K59233+559#25043#24484
10K → 15K28843+245#24484#24239
15K → 20K27716+261#24239#23978
20K → Half592+57#23978#23921
Half → 25K2702+268#23921#23653
25K → 30K3126+306#23653#23347
30K → 20M1477+140#23347#23207
20M → 21M1274+123#23207#23084
21M → 35K647+57#23084#23027
35K → 23M1109+101#23027#22926
23M → 24M5227+25#22926#22901
24M → 40K7211+61#22901#22840
40K → 25.2M224+18#22840#22822
25.2M → Finish5510+45#22822#22777
TOTALS2447181+2266
📊

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