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BOSTON MARATHON 2024

Jin Cao

Bib: 20581•F

IL

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F55-59)
#0 / 876
Top 33%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:04
Rank: #15174
Start → 5K
25:04 | 8:04/mi
10K· 6.21 mi
51:14
Rank: #16034 (-860)
5K → 10K
26:10 | 8:25/mi
15K· 9.32 mi
1:18:12
Rank: #16451 (-417)
10K → 15K
26:58 | 8:41/mi
20K· 12.43 mi
1:45:51
Rank: #16521 (-70)
15K → 20K
27:39 | 8:54/mi
Half· 13.11 mi
1:51:45
Rank: #16513 (+8)
20K → Half
5:54 | 8:39/mi
25K· 15.53 mi
2:13:31
Rank: #16267 (+246)
Half → 25K
21:46 | 8:59/mi
30K· 18.64 mi
2:44:20
Rank: #16475 (-208)
25K → 30K
30:49 | 9:55/mi
20M
2:58:37
Rank: #16655 (-180)
30K → 20M
14:17 | 10:31/mi
21M
3:09:38
Rank: #16688 (-33)
20M → 21M
11:01 | 11:01/mi
35K· 21.75 mi
3:17:11
Rank: #16708 (-20)
21M → 35K
7:33 | 10:06/mi
23M
3:30:06
Rank: #16729 (-21)
35K → 23M
12:55 | 10:19/mi
24M
3:40:12
Rank: #16731 (-2)
23M → 24M
10:06 | 10:06/mi
40K· 24.85 mi
3:48:54
Rank: #16667 (+64)
24M → 40K
8:42 | 10:11/mi
25.2M
3:52:37
Rank: #16612 (+55)
40K → 25.2M
3:43 | 10:47/mi
Finish· 26.22 mi
4:02:40
Rank: #16640 (-28)
25.2M → Finish
10:03 | 9:52/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:45
Pace8:31 /mi
2nd Half
Distance13.11 mi
Time2:10:55
Pace9:59 /mi
📊Positive Split: 17.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:1325:048:0425:04
8:04
-
10K
6.21 mi11:17:2351:148:1526:10
8:25
+0:21
15K
9.32 mi11:44:211:18:128:2326:58
8:41
+0:16
20K
12.43 mi12:12:001:45:518:3127:39
8:54
+0:13
Half
13.11 mi12:17:541:51:458:315:54
8:39
-0:15
25K
15.53 mi12:39:402:13:318:3621:46
8:59
+0:20
30K
18.64 mi13:10:292:44:208:4930:49
9:55
+0:56
20M
20.00 mi13:24:462:58:378:5614:17
10:31
+0:36
21M
21.00 mi13:35:473:09:389:0211:01
11:01
+0:30
35K
21.75 mi13:43:203:17:119:047:33
10:06
-0:55
23M
23.00 mi13:56:153:30:069:0812:55
10:19
+0:13
24M
24.00 mi14:06:213:40:129:1110:06
10:06
-0:13
40K
24.85 mi14:15:033:48:549:138:42
10:11
+0:05
25.2M
25.20 mi14:18:463:52:379:143:43
10:47
+0:36
Finish
26.22 mi14:28:494:02:409:1610:03
9:52
-0:55

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

8:04 /mi

Average Pace

9:16 /mi

Slowest Pace

11:01 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:13:31

55% of race

Time at Steady Pace

1:20:08

33% of race

Time at Slower Pace

29:01

12% of race

Average Pace: 9:15 /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 mi10:51:1325:048:0425:04
8:04
#15174
10K
6.21 mi11:17:2351:148:1526:10
8:25
#16034
15K
9.32 mi11:44:211:18:128:2326:58
8:41
#16451
20K
12.43 mi12:12:001:45:518:3127:39
8:54
#16521
Half
13.11 mi12:17:541:51:458:315:54
8:39
#16513
25K
15.53 mi12:39:402:13:318:3621:46
8:59
#16267
30K
18.64 mi13:10:292:44:208:4930:49
9:55
#16475
20M
20.00 mi13:24:462:58:378:5614:17
10:31
#16655
21M
21.00 mi13:35:473:09:389:0211:01
11:01
#16688
35K
21.75 mi13:43:203:17:119:047:33
10:06
#16708
23M
23.00 mi13:56:153:30:069:0812:55
10:19
#16729
24M
24.00 mi14:06:213:40:129:1110:06
10:06
#16731
40K
24.85 mi14:15:033:48:549:138:42
10:11
#16667
25.2M
25.20 mi14:18:463:52:379:143:43
10:47
#16612
Finish
26.22 mi14:28:494:02:409:1610:03
9:52
#16640
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi151745050505017390(Top 68%)6370(Top 58%)6370(Top 727%)
10K6.21 mi3.10 mi16034-8605565-5155565-51516837(Top 66%)6038(Top 55%)6038(Top 689%)
15K9.32 mi3.11 mi16451-4175829-2645829-26417390(Top 68%)6370(Top 58%)6370(Top 727%)
20K12.43 mi3.11 mi16521-705871-425871-4216895(Top 66%)6112(Top 56%)6112(Top 698%)
Half13.11 mi0.68 mi16513+85880-95880-916603(Top 65%)6005(Top 55%)6005(Top 686%)
25K15.53 mi2.42 mi16267+2465765+1155765+11515437(Top 60%)5415(Top 50%)5415(Top 618%)
30K18.64 mi3.11 mi16475-2085957-1925957-19217098(Top 67%)6568(Top 60%)6568(Top 750%)
20M20.00 mi1.36 mi16655-1806100-1436100-14318036(Top 71%)7229(Top 66%)7229(Top 825%)
21M21.00 mi1.00 mi16688-336149-496149-4916397(Top 64%)6549(Top 60%)6549(Top 748%)
35K21.75 mi0.75 mi16708-206180-316180-3117491(Top 68%)7097(Top 65%)7097(Top 810%)
23M23.00 mi1.25 mi16729-216217-376217-3716494(Top 65%)6656(Top 61%)6656(Top 760%)
24M24.00 mi1.00 mi16731-26243-266243-2616672(Top 65%)6780(Top 62%)6780(Top 774%)
40K24.85 mi0.85 mi16667+646244-16244-115646(Top 61%)6343(Top 58%)6343(Top 724%)
25.2M25.20 mi0.35 mi16612+556225+196225+1913846(Top 54%)5505(Top 50%)5505(Top 628%)
Finish26.22 mi1.02 mi16640-286273-486273-4817949(Top 70%)7487(Top 69%)7487(Top 855%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21stories
+97ft-345ft

Overall

17390

Females

6370

F55-59

6370

5K→10K

3.1 - 6.2 mi

Top 66%
×5stories
+79ft-138ft

Overall

16837

Females

6038

F55-59

6038

10K→15K

6.2 - 9.3 mi

Top 68%
×3stories
+67ft-78ft

Overall

17390

Females

6370

F55-59

6370

15K→20K

9.3 - 12.4 mi

Top 66%
×5stories
+106ft-86ft

Overall

16895

Females

6112

F55-59

6112

20K→Half

12.4 - 13.1 mi

Top 65%
×2stories
+19ft-37ft

Overall

16603

Females

6005

F55-59

6005

Half→25K

13.1 - 15.5 mi

Top 60%
×4stories
+66ft-88ft

Overall

15437

Females

5415

F55-59

5415

25K→30K

15.5 - 18.6 mi

Top 67%
×9stories
+181ft-148ft

Overall

17098

Females

6568

F55-59

6568

30K→20M

18.6 - 20.0 mi

Top 71%
×5stories
+64ft-50ft

Overall

18036

Females

7229

F55-59

7229

20M→21M

20.0 - 21.0 mi

Top 64%
×8stories
+106ft-24ft

Overall

16397

Females

6549

F55-59

6549

21M→35K

21.0 - 21.8 mi

Top 68%
×7stories
+17ft-86ft

Overall

17491

Females

7097

F55-59

7097

35K→23M

21.8 - 23.0 mi

Top 65%
×5stories
+23ft-63ft

Overall

16494

Females

6656

F55-59

6656

23M→24M

23.0 - 24.0 mi

Top 65%
×6stories
+12ft-82ft

Overall

16672

Females

6780

F55-59

6780

24M→40K

24.0 - 24.9 mi

Top 61%
×1story
+6ft-20ft

Overall

15646

Females

6343

F55-59

6343

40K→25.2M

24.9 - 25.2 mi

Top 54%
×1story
+13ft-16ft

Overall

13846

Females

5505

F55-59

5505

25.2M→Finish

25.2 - 26.2 mi

Top 70%
×2stories
+22ft-21ft

Overall

17949

Females

7487

F55-59

7487

Passing Analysis

Category:
Athletes Passed
1621
Passed By
3087
Net Change
-1466
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15174
5K → 10K67927-860#15174#16034
10K → 15K112529-417#16034#16451
15K → 20K247317-70#16451#16521
20K → Half4537+8#16521#16513
Half → 25K33993+246#16513#16267
25K → 30K172380-208#16267#16475
30K → 20M69249-180#16475#16655
20M → 21M100133-33#16655#16688
21M → 35K5474-20#16688#16708
35K → 23M98119-21#16708#16729
23M → 24M7274-2#16729#16731
24M → 40K11147+64#16731#16667
40K → 25.2M638+55#16667#16612
25.2M → Finish72100-28#16612#16640
TOTALS16213087-1466
📊

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