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BOSTON MARATHON 2024

Yongli Ji

Bib: 19895•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 38%
Gender (Female)
#0 / 10924
Top 23%
Masters (Masters Women)
#0 / 6263
Top 11%
Division (F50-54)
#0 / 1187
Top 6%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:44
Rank: #14355
Start → 5K
7:58/mi
24:44 split
10K· 6.21 mi
49:46
Rank: #14481 (-126)
5K → 10K
8:03/mi
25:02 split
15K· 9.32 mi
1:14:40
Rank: #14118 (+363)
10K → 15K
8:01/mi
24:54 split
20K· 12.43 mi
1:39:35
Rank: #13530 (+588)
15K → 20K
8:01/mi
24:55 split
Half· 13.11 mi
1:44:53
Rank: #13386 (+144)
20K → Half
7:46/mi
5:18 split
25K· 15.53 mi
2:04:05
Rank: #12596 (+790)
Half → 25K
7:55/mi
19:12 split
30K· 18.64 mi
2:29:09
Rank: #11668 (+928)
25K → 30K
8:04/mi
25:04 split
20M
2:40:06
Rank: #11221 (+447)
30K → 20M
8:03/mi
10:57 split
21M
2:48:29
Rank: #10747 (+474)
20M → 21M
8:23/mi
8:23 split
35K· 21.75 mi
2:54:15
Rank: #10543 (+204)
21M → 35K
7:42/mi
5:46 split
23M
3:04:20
Rank: #10215 (+328)
35K → 23M
8:03/mi
10:05 split
24M
3:12:15
Rank: #9985 (+230)
23M → 24M
7:55/mi
7:55 split
40K· 24.85 mi
3:19:12
Rank: #9816 (+169)
24M → 40K
8:08/mi
6:57 split
25.2M
3:22:16
Rank: #9728 (+88)
40K → 25.2M
8:54/mi
3:04 split
Finish· 26.22 mi
3:30:04
Rank: #9587 (+141)
25.2M → Finish
7:39/mi
7:48 split

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:44:53
Pace8:00 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:45:11
Pace8:01 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:5424:447:5824:44
7:58
-
10K
6.21 mi11:41:5649:468:0125:02
8:03
+0:05
15K
9.32 mi12:06:501:14:408:0124:54
8:01
-0:02
20K
12.43 mi12:31:451:39:358:0124:55
8:01
0:00
Half
13.11 mi12:37:031:44:538:005:18
7:46
-0:15
25K
15.53 mi12:56:152:04:057:5919:12
7:55
+0:09
30K
18.64 mi13:21:192:29:098:0025:04
8:04
+0:09
20M
20.00 mi13:32:162:40:068:0010:57
8:03
-0:01
21M
21.00 mi13:40:392:48:298:018:23
8:23
+0:20
35K
21.75 mi13:46:252:54:158:015:46
7:42
-0:41
23M
23.00 mi13:56:303:04:208:0110:05
8:03
+0:21
24M
24.00 mi14:04:253:12:158:017:55
7:55
-0:08
40K
24.85 mi14:11:223:19:128:016:57
8:08
+0:13
25.2M
25.20 mi14:14:263:22:168:023:04
8:54
+0:46
Finish
26.22 mi14:22:143:30:048:017:48
7:39
-1:15

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

7:39 /mi

Average Pace

8:01 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:27:00

99% of race

Time at Steady Pace

3:04

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:01 /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 mi11:16:5424:447:5824:44
7:58
#14355
10K
6.21 mi11:41:5649:468:0125:02
8:03
#14481
15K
9.32 mi12:06:501:14:408:0124:54
8:01
#14118
20K
12.43 mi12:31:451:39:358:0124:55
8:01
#13530
Half
13.11 mi12:37:031:44:538:005:18
7:46
#13386
25K
15.53 mi12:56:152:04:057:5919:12
7:55
#12596
30K
18.64 mi13:21:192:29:098:0025:04
8:04
#11668
20M
20.00 mi13:32:162:40:068:0010:57
8:03
#11221
21M
21.00 mi13:40:392:48:298:018:23
8:23
#10747
35K
21.75 mi13:46:252:54:158:015:46
7:42
#10543
23M
23.00 mi13:56:303:04:208:0110:05
8:03
#10215
24M
24.00 mi14:04:253:12:158:017:55
7:55
#9985
40K
24.85 mi14:11:223:19:128:016:57
8:08
#9816
25.2M
25.20 mi14:14:263:22:168:023:04
8:54
#9728
Finish
26.22 mi14:22:143:30:048:017:48
7:39
#9587
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi143554529452913542(Top 53%)4101(Top 38%)4101(Top 345%)
10K6.21 mi3.10 mi14481-1264621-924621-9214603(Top 57%)4680(Top 43%)4680(Top 394%)
15K9.32 mi3.11 mi14118+3634413+2084413+20813542(Top 53%)4101(Top 38%)4101(Top 345%)
20K12.43 mi3.11 mi13530+5884075+3384075+33811970(Top 47%)3297(Top 30%)3297(Top 278%)
Half13.11 mi0.68 mi13386+1444014+614014+6111122(Top 44%)2862(Top 26%)2862(Top 241%)
25K15.53 mi2.42 mi12596+7903590+4243590+4249673(Top 38%)2324(Top 21%)2324(Top 196%)
30K18.64 mi3.11 mi11668+9283175+4153175+4158280(Top 32%)1889(Top 17%)1889(Top 159%)
20M20.00 mi1.36 mi11221+4472996+1792996+1797134(Top 28%)1609(Top 15%)1609(Top 136%)
21M21.00 mi1.00 mi10747+4742810+1862810+1865728(Top 22%)1189(Top 11%)1189(Top 100%)
35K21.75 mi0.75 mi10543+2042739+712739+716164(Top 24%)1379(Top 13%)1379(Top 116%)
23M23.00 mi1.25 mi10215+3282631+1082631+1086060(Top 24%)1486(Top 14%)1486(Top 125%)
24M24.00 mi1.00 mi9985+2302560+712560+716208(Top 24%)1626(Top 15%)1626(Top 137%)
40K24.85 mi0.85 mi9816+1692517+432517+436458(Top 25%)1866(Top 17%)1866(Top 157%)
25.2M25.20 mi0.35 mi9728+882496+212496+216138(Top 24%)1794(Top 16%)1794(Top 151%)
Finish26.22 mi1.02 mi9587+1412461+352461+356509(Top 25%)1895(Top 17%)1895(Top 160%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21stories
+97ft-345ft

Overall

13542

Females

4101

F50-54

4101

5K→10K

3.1 - 6.2 mi

Top 57%
×5stories
+79ft-138ft

Overall

14603

Females

4680

F50-54

4680

10K→15K

6.2 - 9.3 mi

Top 53%
×3stories
+67ft-78ft

Overall

13542

Females

4101

F50-54

4101

15K→20K

9.3 - 12.4 mi

Top 47%
×5stories
+106ft-86ft

Overall

11970

Females

3297

F50-54

3297

20K→Half

12.4 - 13.1 mi

Top 44%
×2stories
+19ft-37ft

Overall

11122

Females

2862

F50-54

2862

Half→25K

13.1 - 15.5 mi

Top 38%
×4stories
+66ft-88ft

Overall

9673

Females

2324

F50-54

2324

25K→30K

15.5 - 18.6 mi

Top 32%
×9stories
+181ft-148ft

Overall

8280

Females

1889

F50-54

1889

30K→20M

18.6 - 20.0 mi

Top 28%
×5stories
+64ft-50ft

Overall

7134

Females

1609

F50-54

1609

20M→21M

20.0 - 21.0 mi

Top 22%
×8stories
+106ft-24ft

Overall

5728

Females

1189

F50-54

1189

21M→35K

21.0 - 21.8 mi

Top 24%
×7stories
+17ft-86ft

Overall

6164

Females

1379

F50-54

1379

35K→23M

21.8 - 23.0 mi

Top 24%
×5stories
+23ft-63ft

Overall

6060

Females

1486

F50-54

1486

23M→24M

23.0 - 24.0 mi

Top 24%
×6stories
+12ft-82ft

Overall

6208

Females

1626

F50-54

1626

24M→40K

24.0 - 24.9 mi

Top 25%
×1story
+6ft-20ft

Overall

6458

Females

1866

F50-54

1866

40K→25.2M

24.9 - 25.2 mi

Top 24%
×1story
+13ft-16ft

Overall

6138

Females

1794

F50-54

1794

25.2M→Finish

25.2 - 26.2 mi

Top 25%
×2stories
+22ft-21ft

Overall

6509

Females

1895

F50-54

1895

Passing Analysis

Category:
Athletes Passed
5288*
Passed By
520
Net Change
+4768
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14355
5K → 10K239365-126#14355#14481
10K → 15K43774+363#14481#14118
15K → 20K61224+588#14118#13530
20K → Half1462+144#13530#13386
Half → 25K7944+790#13386#12596
25K → 30K9357+928#12596#11668
30K → 20M4481+447#11668#11221
20M → 21M4751+474#11221#10747
21M → 35K2040+204#10747#10543
35K → 23M3324+328#10543#10215
23M → 24M235*5+230#10215#9985
24M → 40K18516+169#9985#9816
40K → 25.2M924+88#9816#9728
25.2M → Finish15413+141#9728#9587
TOTALS5288*520+4768

* 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