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BOSTON MARATHON 2024

Xiaoxia Li

Bib: 18255•F

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Division (F18-39)
#0 / 4660
Race Day Weather
55°/45°F
scattered clouds

⏱️ 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
9:13/mi
28:37
↑ 97↓ 3451.5%
10K· 6.21 mi
9:44/mi
58:52
↑ 79↓ 1380.4%
15K· 9.32 mi
10:42/mi
1:32:06
↑ 67↓ 78
20K· 12.43 mi
11:14/mi
2:07:01
↑ 106↓ 860.1%
Half· 13.11 mi
10:26/mi
2:14:08
↑ 19↓ 370.5%
25K· 15.53 mi
11:46/mi
2:42:39
↑ 66↓ 880.2%
30K· 18.64 mi
12:42/mi
3:22:06
↑ 181↓ 1480.2%
20M
13:33/mi
3:40:31
↑ 64↓ 500.2%
21M
12:41/mi
3:53:12
↑ 106↓ 241.6%
35K· 21.75 mi
9:37/mi
4:00:24
↑ 17↓ 861.7%
23M
10:46/mi
4:13:53
↑ 23↓ 630.6%
24M
11:39/mi
4:25:32
↓ 821.3%
40K· 24.85 mi
11:42/mi
4:35:32
↓ 200.3%
25.2M
13:09/mi
4:40:04
↑ 13↓ 160.2%
Finish· 26.22 mi
11:19/mi
4:51:36
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:08
Pace10:14 /mi
2nd Half
Distance13.11 mi
Time2:37:28
Pace12:01 /mi
📊Positive Split: 17.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:20:5528:379:1328:37
9:13
-
10K
6.21 mi11:51:1058:529:2830:15
9:44
+0:31
15K
9.32 mi12:24:241:32:069:5333:14
10:42
+0:58
20K
12.43 mi12:59:192:07:0110:1334:55
11:14
+0:32
Half
13.11 mi13:06:262:14:0810:147:07
10:26
-0:48
25K
15.53 mi13:34:572:42:3910:2828:31
11:46
+1:20
30K
18.64 mi14:14:243:22:0610:5039:27
12:42
+0:56
20M
20.00 mi14:32:493:40:3111:0218:25
13:33
+0:51
21M
21.00 mi14:45:303:53:1211:0612:41
12:41
-0:52
35K
21.75 mi14:52:424:00:2411:037:12
9:37
-3:04
23M
23.00 mi15:06:114:13:5311:0213:29
10:46
+1:09
24M
24.00 mi15:17:504:25:3211:0411:39
11:39
+0:53
40K
24.85 mi15:27:504:35:3211:0510:00
11:42
+0:03
25.2M
25.20 mi15:32:224:40:0411:074:32
13:09
+1:27
Finish
26.22 mi15:43:544:51:3611:0811:32
11:19
-1:50

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

9:13 /mi

Average Pace

11:08 /mi

Slowest Pace

13:33 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:13:11

25% of race

Time at Steady Pace

2:23:20

49% of race

Time at Slower Pace

1:15:05

26% of race

Average Pace: 11:07 /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 mi11:20:5528:379:1328:37
9:13
#20858
10K
6.21 mi11:51:1058:529:2830:15
9:44
#21469
15K
9.32 mi12:24:241:32:069:5333:14
10:42
#22214
20K
12.43 mi12:59:192:07:0110:1334:55
11:14
#22471
Half
13.11 mi13:06:262:14:0810:147:07
10:26
#22464
25K
15.53 mi13:34:572:42:3910:2828:31
11:46
#22553
30K
18.64 mi14:14:243:22:0610:5039:27
12:42
#22658
20M
20.00 mi14:32:493:40:3111:0218:25
13:33
#22782
21M
21.00 mi14:45:303:53:1211:0612:41
12:41
#22660
35K
21.75 mi14:52:424:00:2411:037:12
9:37
#22462
23M
23.00 mi15:06:114:13:5311:0213:29
10:46
#22246
24M
24.00 mi15:17:504:25:3211:0411:39
11:39
#22171
40K
24.85 mi15:27:504:35:3211:0510:00
11:42
#22082
25.2M
25.20 mi15:32:224:40:0411:074:32
13:09
#22050
Finish
26.22 mi15:43:544:51:3611:0811:32
11:19
#22061
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi208588327832723271(Top 91%)9576(Top 88%)9576(Top 205%)
10K6.21 mi3.10 mi21469-6118630-3038630-30321954(Top 86%)8887(Top 81%)8887(Top 191%)
15K9.32 mi3.11 mi22214-7459011-3819011-38123271(Top 91%)9576(Top 88%)9576(Top 205%)
20K12.43 mi3.11 mi22471-2579142-1319142-13123041(Top 90%)9472(Top 87%)9472(Top 203%)
Half13.11 mi0.68 mi22464+79144-29144-222514(Top 88%)9231(Top 85%)9231(Top 198%)
25K15.53 mi2.42 mi22553-899192-489192-4822792(Top 89%)9435(Top 86%)9435(Top 202%)
30K18.64 mi3.11 mi22658-1059315-1239315-12322903(Top 90%)9605(Top 88%)9605(Top 206%)
20M20.00 mi1.36 mi22782-1249400-859400-8523526(Top 92%)10015(Top 92%)10015(Top 215%)
21M21.00 mi1.00 mi22660+1229359+419359+4120210(Top 79%)8443(Top 77%)8443(Top 181%)
35K21.75 mi0.75 mi22462+1989254+1059254+10515978(Top 63%)6353(Top 58%)6353(Top 136%)
23M23.00 mi1.25 mi22246+2169161+939161+9317768(Top 70%)7303(Top 67%)7303(Top 157%)
24M24.00 mi1.00 mi22171+759142+199142+1920716(Top 81%)8797(Top 81%)8797(Top 189%)
40K24.85 mi0.85 mi22082+899122+209122+2019799(Top 77%)8402(Top 77%)8402(Top 180%)
25.2M25.20 mi0.35 mi22050+329114+89114+820025(Top 78%)8538(Top 78%)8538(Top 183%)
Finish26.22 mi1.02 mi22061-119128-149128-1422077(Top 86%)9485(Top 87%)9485(Top 204%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 91%
×21story building
+97ft-345ft

Overall

23271

Females

9576

F18-39

9576

5K→10K

3.1 - 6.2 mi

Top 86%
×5story building
+79ft-138ft

Overall

21954

Females

8887

F18-39

8887

10K→15K

6.2 - 9.3 mi

Top 91%
×3story building
+67ft-78ft

Overall

23271

Females

9576

F18-39

9576

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

23041

Females

9472

F18-39

9472

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

22514

Females

9231

F18-39

9231

Half→25K

13.1 - 15.5 mi

Top 89%
×4story building
+66ft-88ft

Overall

22792

Females

9435

F18-39

9435

25K→30K

15.5 - 18.6 mi

Top 90%
×9story building
+181ft-148ft

Overall

22903

Females

9605

F18-39

9605

30K→20M

18.6 - 20.0 mi

Top 92%
×5story building
+64ft-50ft

Overall

23526

Females

10015

F18-39

10015

20M→21M

20.0 - 21.0 mi

Top 79%
×8story building
+106ft-24ft

Overall

20210

Females

8443

F18-39

8443

21M→35K

21.0 - 21.8 mi

Top 63%
×7story building
+17ft-86ft

Overall

15978

Females

6353

F18-39

6353

35K→23M

21.8 - 23.0 mi

Top 70%
×5story building
+23ft-63ft

Overall

17768

Females

7303

F18-39

7303

23M→24M

23.0 - 24.0 mi

Top 81%
×6story building
+12ft-82ft

Overall

20716

Females

8797

F18-39

8797

24M→40K

24.0 - 24.9 mi

Top 77%
×1story
+6ft-20ft

Overall

19799

Females

8402

F18-39

8402

40K→25.2M

24.9 - 25.2 mi

Top 78%
×1story
+13ft-16ft

Overall

20025

Females

8538

F18-39

8538

25.2M→Finish

25.2 - 26.2 mi

Top 86%
×2story building
+22ft-21ft

Overall

22077

Females

9485

F18-39

9485

Passing Analysis

Category:
Athletes Passed
1304
Passed By
2507
Net Change
-1203
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20858
5K → 10K70681-611#20858#21469
10K → 15K30775-745#21469#22214
15K → 20K102359-257#22214#22471
20K → Half2922+7#22471#22464
Half → 25K88177-89#22464#22553
25K → 30K111216-105#22553#22658
30K → 20M45169-124#22658#22782
20M → 21M13412+122#22782#22660
21M → 35K1991+198#22660#22462
35K → 23M2160+216#22462#22246
23M → 24M9520+75#22246#22171
24M → 40K978+89#22171#22082
40K → 25.2M4210+32#22082#22050
25.2M → Finish4657-11#22050#22061
TOTALS13042507-1203
📊

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