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BOSTON MARATHON 2023

Jasmine Li

Bib: 18639•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Top 47%
Division (F50-54)
#0 / 1207
Top 41%
Race Day Weather
49°/39°F
light intensity drizzle

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:41/mi
26:58
↑ 97↓ 3451.5%
10K· 6.21 mi
8:32/mi
53:29
↑ 79↓ 1380.4%
15K· 9.32 mi
8:26/mi
1:19:40
↑ 67↓ 78
20K· 12.43 mi
8:31/mi
1:46:08
↑ 106↓ 860.1%
Half· 13.11 mi
8:39/mi
1:52:02
↑ 19↓ 370.5%
25K· 15.53 mi
8:45/mi
2:13:14
↑ 66↓ 880.2%
30K· 18.64 mi
9:03/mi
2:41:21
↑ 181↓ 1480.2%
20M
9:10/mi
2:53:49
↑ 64↓ 500.2%
21M
9:25/mi
3:03:14
↑ 106↓ 241.6%
35K· 21.75 mi
8:40/mi
3:09:43
↑ 17↓ 861.7%
23M
8:56/mi
3:20:54
↑ 23↓ 630.6%
24M
8:38/mi
3:29:32
↓ 821.3%
40K· 24.85 mi
9:14/mi
3:37:26
↓ 200.3%
25.2M
9:49/mi
3:40:49
↑ 13↓ 160.2%
Finish· 26.22 mi
9:02/mi
3:50:01
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:02
Pace8:33 /mi
2nd Half
Distance13.11 mi
Time1:57:59
Pace9:00 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:2126:588:4126:58
8:41
-
10K
6.21 mi11:47:5253:298:3626:31
8:32
-0:09
15K
9.32 mi12:14:031:19:408:3326:11
8:26
-0:06
20K
12.43 mi12:40:311:46:088:3226:28
8:31
+0:05
Half
13.11 mi12:46:251:52:028:335:54
8:39
+0:08
25K
15.53 mi13:07:372:13:148:3521:12
8:45
+0:06
30K
18.64 mi13:35:442:41:218:3928:07
9:03
+0:18
20M
20.00 mi13:48:122:53:498:4112:28
9:10
+0:07
21M
21.00 mi13:57:373:03:148:449:25
9:25
+0:15
35K
21.75 mi14:04:063:09:438:436:29
8:40
-0:45
23M
23.00 mi14:15:173:20:548:4411:11
8:56
+0:16
24M
24.00 mi14:23:553:29:328:448:38
8:38
-0:18
40K
24.85 mi14:31:493:37:268:457:54
9:14
+0:36
25.2M
25.20 mi14:35:123:40:498:463:23
9:49
+0:35
Finish
26.22 mi14:44:243:50:018:479:12
9:02
-0:47

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

8:26 /mi

Average Pace

8:47 /mi

Slowest Pace

9:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:37:13

94% of race

Time at Steady Pace

12:48

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:46 /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 mi11:21:2126:588:4126:58
8:41
#18747
10K
6.21 mi11:47:5253:298:3626:31
8:32
#18566
15K
9.32 mi12:14:031:19:408:3326:11
8:26
#18157
20K
12.43 mi12:40:311:46:088:3226:28
8:31
#17832
Half
13.11 mi12:46:251:52:028:335:54
8:39
#17863
25K
15.53 mi13:07:372:13:148:3521:12
8:45
#17805
30K
18.64 mi13:35:442:41:218:3928:07
9:03
#17691
20M
20.00 mi13:48:122:53:498:4112:28
9:10
#17677
21M
21.00 mi13:57:373:03:148:449:25
9:25
#17543
35K
21.75 mi14:04:063:09:438:436:29
8:40
#17488
23M
23.00 mi14:15:173:20:548:4411:11
8:56
#17377
24M
24.00 mi14:23:553:29:328:448:38
8:38
#17279
40K
24.85 mi14:31:493:37:268:457:54
9:14
#17285
25.2M
25.20 mi14:35:123:40:498:463:23
9:49
#17282
Finish
26.22 mi14:44:243:50:018:479:12
9:02
#17346
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi187477037703717326(Top 65%)6120(Top 54%)6120(Top 507%)
10K6.21 mi3.10 mi18566+1816863+1746863+17418467(Top 69%)6747(Top 59%)6747(Top 559%)
15K9.32 mi3.11 mi18157+4096621+2426621+24217326(Top 65%)6120(Top 54%)6120(Top 507%)
20K12.43 mi3.11 mi17832+3256423+1986423+19816989(Top 64%)5923(Top 52%)5923(Top 491%)
Half13.11 mi0.68 mi17863-316442-196442-1918623(Top 70%)6837(Top 60%)6837(Top 566%)
25K15.53 mi2.42 mi17805+586424+186424+1817632(Top 66%)6355(Top 56%)6355(Top 527%)
30K18.64 mi3.11 mi17691+1146372+526372+5217444(Top 66%)6323(Top 55%)6323(Top 524%)
20M20.00 mi1.36 mi17677+146379-76379-717435(Top 65%)6414(Top 56%)6414(Top 531%)
21M21.00 mi1.00 mi17543+1346324+556324+5515593(Top 59%)5407(Top 47%)5407(Top 448%)
35K21.75 mi0.75 mi17488+556299+256299+2516279(Top 61%)5864(Top 51%)5864(Top 486%)
23M23.00 mi1.25 mi17377+1116244+556244+5515727(Top 59%)5596(Top 49%)5596(Top 464%)
24M24.00 mi1.00 mi17279+986191+536191+5315310(Top 58%)5422(Top 47%)5422(Top 449%)
40K24.85 mi0.85 mi17285-66222-316222-3117286(Top 65%)6558(Top 57%)6558(Top 543%)
25.2M25.20 mi0.35 mi17282+36227-56227-516643(Top 63%)6232(Top 55%)6232(Top 516%)
Finish26.22 mi1.02 mi17346-646272-456272-4518124(Top 68%)6962(Top 61%)6962(Top 577%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21story building
+97ft-345ft

Overall

17326

Females

6120

F50-54

6120

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

18467

Females

6747

F50-54

6747

10K→15K

6.2 - 9.3 mi

Top 65%
×3story building
+67ft-78ft

Overall

17326

Females

6120

F50-54

6120

15K→20K

9.3 - 12.4 mi

Top 64%
×5story building
+106ft-86ft

Overall

16989

Females

5923

F50-54

5923

20K→Half

12.4 - 13.1 mi

Top 70%
×2story building
+19ft-37ft

Overall

18623

Females

6837

F50-54

6837

Half→25K

13.1 - 15.5 mi

Top 66%
×4story building
+66ft-88ft

Overall

17632

Females

6355

F50-54

6355

25K→30K

15.5 - 18.6 mi

Top 66%
×9story building
+181ft-148ft

Overall

17444

Females

6323

F50-54

6323

30K→20M

18.6 - 20.0 mi

Top 65%
×5story building
+64ft-50ft

Overall

17435

Females

6414

F50-54

6414

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15593

Females

5407

F50-54

5407

21M→35K

21.0 - 21.8 mi

Top 61%
×7story building
+17ft-86ft

Overall

16279

Females

5864

F50-54

5864

35K→23M

21.8 - 23.0 mi

Top 59%
×5story building
+23ft-63ft

Overall

15727

Females

5596

F50-54

5596

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

15310

Females

5422

F50-54

5422

24M→40K

24.0 - 24.9 mi

Top 65%
×1story
+6ft-20ft

Overall

17286

Females

6558

F50-54

6558

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

16643

Females

6232

F50-54

6232

25.2M→Finish

25.2 - 26.2 mi

Top 68%
×2story building
+22ft-21ft

Overall

18124

Females

6962

F50-54

6962

Passing Analysis

Category:
Athletes Passed
2410
Passed By
1009
Net Change
+1401
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18747
5K → 10K455274+181#18747#18566
10K → 15K45344+409#18566#18157
15K → 20K36944+325#18157#17832
20K → Half1748-31#17832#17863
Half → 25K159101+58#17863#17805
25K → 30K231117+114#17805#17691
30K → 20M8975+14#17691#17677
20M → 21M16834+134#17677#17543
21M → 35K8227+55#17543#17488
35K → 23M13625+111#17488#17377
23M → 24M11820+98#17377#17279
24M → 40K6773-6#17279#17285
40K → 25.2M2724+3#17285#17282
25.2M → Finish39103-64#17282#17346
TOTALS24101009+1401
📊

Passing Visuals

Category:
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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