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BOSTON MARATHON 2023

Jamie Yu

Bib: 14908•F

MA

0:00
0:00
/ mi
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Overall
#0 / 26622
Top 34%
Gender (Female)
#0 / 11423
Top 15%
Division (F18-39)
#0 / 4884
Top 27%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:21
Rank: #12731
Start → 5K
24:21 | 7:50/mi
10K· 6.21 mi
48:36
Rank: #12893 (-162)
5K → 10K
24:15 | 7:48/mi
15K· 9.32 mi
1:12:54
Rank: #12887 (+6)
10K → 15K
24:18 | 7:49/mi
20K· 12.43 mi
1:36:51
Rank: #12344 (+543)
15K → 20K
23:57 | 7:43/mi
Half· 13.11 mi
1:42:03
Rank: #12271 (+73)
20K → Half
5:12 | 7:37/mi
25K· 15.53 mi
2:00:49
Rank: #11984 (+287)
Half → 25K
18:46 | 7:44/mi
30K· 18.64 mi
2:24:55
Rank: #11388 (+596)
25K → 30K
24:06 | 7:45/mi
20M
2:35:11
Rank: #11012 (+376)
30K → 20M
10:16 | 7:33/mi
21M
2:42:53
Rank: #10659 (+353)
20M → 21M
7:42 | 7:42/mi
35K· 21.75 mi
2:48:14
Rank: #10465 (+194)
21M → 35K
5:21 | 7:09/mi
23M
2:57:18
Rank: #10080 (+385)
35K → 23M
9:04 | 7:14/mi
24M
3:04:20
Rank: #9776 (+304)
23M → 24M
7:02 | 7:02/mi
40K· 24.85 mi
3:10:22
Rank: #9509 (+267)
24M → 40K
6:02 | 7:03/mi
25.2M
3:12:58
Rank: #9399 (+110)
40K → 25.2M
2:36 | 7:32/mi
Finish· 26.22 mi
3:19:55
Rank: #9171 (+228)
25.2M → Finish
6:57 | 6:49/mi

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:42:03
Pace7:47 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:37:52
Pace7:28 /mi
📊Negative Split: 4.1% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:1324:217:5024:21
7:50
-
10K
6.21 mi11:18:2848:367:4924:15
7:48
-0:02
15K
9.32 mi11:42:461:12:547:4924:18
7:49
+0:01
20K
12.43 mi12:06:431:36:517:4823:57
7:43
-0:06
Half
13.11 mi12:11:551:42:037:475:12
7:37
-0:06
25K
15.53 mi12:30:412:00:497:4718:46
7:44
+0:07
30K
18.64 mi12:54:472:24:557:4624:06
7:45
+0:01
20M
20.00 mi13:05:032:35:117:4610:16
7:33
-0:12
21M
21.00 mi13:12:452:42:537:457:42
7:42
+0:09
35K
21.75 mi13:18:062:48:147:445:21
7:09
-0:33
23M
23.00 mi13:27:102:57:187:439:04
7:14
+0:05
24M
24.00 mi13:34:123:04:207:417:02
7:02
-0:12
40K
24.85 mi13:40:143:10:227:406:02
7:03
+0:01
25.2M
25.20 mi13:42:503:12:587:392:36
7:32
+0:29
Finish
26.22 mi13:49:473:19:557:386:57
6:49
-0:43

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

6:49 /mi

Average Pace

7:38 /mi

Slowest Pace

7:50 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

34:26

17% of race

Time at Steady Pace

2:45:29

83% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:37 /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 mi10:54:1324:217:5024:21
7:50
#12731
10K
6.21 mi11:18:2848:367:4924:15
7:48
#12893
15K
9.32 mi11:42:461:12:547:4924:18
7:49
#12887
20K
12.43 mi12:06:431:36:517:4823:57
7:43
#12344
Half
13.11 mi12:11:551:42:037:475:12
7:37
#12271
25K
15.53 mi12:30:412:00:497:4718:46
7:44
#11984
30K
18.64 mi12:54:472:24:557:4624:06
7:45
#11388
20M
20.00 mi13:05:032:35:117:4610:16
7:33
#11012
21M
21.00 mi13:12:452:42:537:457:42
7:42
#10659
35K
21.75 mi13:18:062:48:147:445:21
7:09
#10465
23M
23.00 mi13:27:102:57:187:439:04
7:14
#10080
24M
24.00 mi13:34:123:04:207:417:02
7:02
#9776
40K
24.85 mi13:40:143:10:227:406:02
7:03
#9509
25.2M
25.20 mi13:42:503:12:587:392:36
7:32
#9399
Finish
26.22 mi13:49:473:19:557:386:57
6:49
#9171
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi127313288328812902(Top 48%)3409(Top 30%)3409(Top 70%)
10K6.21 mi3.10 mi12893-1623374-863374-8613161(Top 49%)3516(Top 31%)3516(Top 72%)
15K9.32 mi3.11 mi12887+63389-153389-1512902(Top 48%)3409(Top 30%)3409(Top 70%)
20K12.43 mi3.11 mi12344+5433113+2763113+27610992(Top 41%)2396(Top 21%)2396(Top 49%)
Half13.11 mi0.68 mi12271+733077+363077+3611229(Top 42%)2460(Top 22%)2460(Top 50%)
25K15.53 mi2.42 mi11984+2872929+1482929+14810616(Top 40%)2286(Top 20%)2286(Top 47%)
30K18.64 mi3.11 mi11388+5962630+2992630+2999041(Top 34%)1725(Top 15%)1725(Top 35%)
20M20.00 mi1.36 mi11012+3762438+1922438+1927228(Top 27%)1120(Top 10%)1120(Top 23%)
21M21.00 mi1.00 mi10659+3532279+1592279+1595659(Top 21%)720(Top 6%)720(Top 15%)
35K21.75 mi0.75 mi10465+1942198+812198+816283(Top 24%)864(Top 8%)864(Top 18%)
23M23.00 mi1.25 mi10080+3852036+1622036+1625031(Top 19%)545(Top 5%)545(Top 11%)
24M24.00 mi1.00 mi9776+3041924+1121924+1124866(Top 18%)541(Top 5%)541(Top 11%)
40K24.85 mi0.85 mi9509+2671831+931831+934190(Top 16%)458(Top 4%)458(Top 9%)
25.2M25.20 mi0.35 mi9399+1101802+291802+294195(Top 16%)521(Top 5%)521(Top 11%)
Finish26.22 mi1.02 mi9171+2281723+791723+794231(Top 16%)517(Top 5%)517(Top 11%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
×21stories
+97ft-345ft

Overall

12902

Females

3409

F18-39

3409

5K→10K

3.1 - 6.2 mi

Top 49%
×5stories
+79ft-138ft

Overall

13161

Females

3516

F18-39

3516

10K→15K

6.2 - 9.3 mi

Top 48%
×3stories
+67ft-78ft

Overall

12902

Females

3409

F18-39

3409

15K→20K

9.3 - 12.4 mi

Top 41%
×5stories
+106ft-86ft

Overall

10992

Females

2396

F18-39

2396

20K→Half

12.4 - 13.1 mi

Top 42%
×2stories
+19ft-37ft

Overall

11229

Females

2460

F18-39

2460

Half→25K

13.1 - 15.5 mi

Top 40%
×4stories
+66ft-88ft

Overall

10616

Females

2286

F18-39

2286

25K→30K

15.5 - 18.6 mi

Top 34%
×9stories
+181ft-148ft

Overall

9041

Females

1725

F18-39

1725

30K→20M

18.6 - 20.0 mi

Top 27%
×5stories
+64ft-50ft

Overall

7228

Females

1120

F18-39

1120

20M→21M

20.0 - 21.0 mi

Top 21%
×8stories
+106ft-24ft

Overall

5659

Females

720

F18-39

720

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6283

Females

864

F18-39

864

35K→23M

21.8 - 23.0 mi

Top 19%
×5stories
+23ft-63ft

Overall

5031

Females

545

F18-39

545

23M→24M

23.0 - 24.0 mi

Top 18%
×6stories
+12ft-82ft

Overall

4866

Females

541

F18-39

541

24M→40K

24.0 - 24.9 mi

Top 16%
×1story
+6ft-20ft

Overall

4190

Females

458

F18-39

458

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4195

Females

521

F18-39

521

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2stories
+22ft-21ft

Overall

4231

Females

517

F18-39

517

Passing Analysis

Category:
Athletes Passed
4207*
Passed By
647
Net Change
+3560
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12731
5K → 10K230392-162#12731#12893
10K → 15K207201+6#12893#12887
15K → 20K56421+543#12887#12344
20K → Half807+73#12344#12271
Half → 25K30619+287#12271#11984
25K → 30K5993+596#11984#11388
30K → 20M377*1+376#11388#11012
20M → 21M3530+353#11012#10659
21M → 35K1940+194#10659#10465
35K → 23M3850+385#10465#10080
23M → 24M304*0+304#10080#9776
24M → 40K267*0+267#9776#9509
40K → 25.2M1100+110#9509#9399
25.2M → Finish2313+228#9399#9171
TOTALS4207*647+3560

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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