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BOSTON MARATHON 2024

Chunrong Liu

Bib: 19554•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Top 47%
Division (F55-59)
#0 / 876
Top 26%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:12
Rank: #17412
Start → 5K
26:12 | 8:26/mi
10K· 6.21 mi
52:02
Rank: #16776 (+636)
5K → 10K
25:50 | 8:19/mi
15K· 9.32 mi
1:18:21
Rank: #16536 (+240)
10K → 15K
26:19 | 8:28/mi
20K· 12.43 mi
1:45:12
Rank: #16218 (+318)
15K → 20K
26:51 | 8:39/mi
Half· 13.11 mi
1:50:59
Rank: #16162 (+56)
20K → Half
5:47 | 8:29/mi
25K· 15.53 mi
2:11:57
Rank: #15734 (+428)
Half → 25K
20:58 | 8:39/mi
30K· 18.64 mi
2:39:45
Rank: #15196 (+538)
25K → 30K
27:48 | 8:57/mi
20M
2:53:07
Rank: #15274 (-78)
30K → 20M
13:22 | 9:50/mi
21M
3:03:50
Rank: #15292 (-18)
20M → 21M
10:43 | 10:43/mi
35K· 21.75 mi
3:10:47
Rank: #15259 (+33)
21M → 35K
6:57 | 9:17/mi
23M
3:23:31
Rank: #15362 (-103)
35K → 23M
12:44 | 10:10/mi
24M
3:34:30
Rank: #15630 (-268)
23M → 24M
10:59 | 10:59/mi
40K· 24.85 mi
3:43:56
Rank: #15757 (-127)
24M → 40K
9:26 | 11:02/mi
25.2M
3:48:16
Rank: #15820 (-63)
40K → 25.2M
4:20 | 12:34/mi
Finish· 26.22 mi
3:59:00
Rank: #16051 (-231)
25.2M → Finish
10:44 | 10:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:50:59
Pace8:28 /mi
2nd Half
Distance13.11 mi
Time2:08:01
Pace9:46 /mi
📊Positive Split: 15.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:41:5026:128:2626:12
8:26
-
10K
6.21 mi12:07:4052:028:2225:50
8:19
-0:07
15K
9.32 mi12:33:591:18:218:2426:19
8:28
+0:09
20K
12.43 mi13:00:501:45:128:2826:51
8:39
+0:11
Half
13.11 mi13:06:371:50:598:285:47
8:29
-0:10
25K
15.53 mi13:27:352:11:578:3020:58
8:39
+0:10
30K
18.64 mi13:55:232:39:458:3427:48
8:57
+0:18
20M
20.00 mi14:08:452:53:078:3913:22
9:50
+0:53
21M
21.00 mi14:19:283:03:508:4510:43
10:43
+0:53
35K
21.75 mi14:26:253:10:478:466:57
9:17
-1:26
23M
23.00 mi14:39:093:23:318:5112:44
10:10
+0:53
24M
24.00 mi14:50:083:34:308:5610:59
10:59
+0:49
40K
24.85 mi14:59:343:43:569:019:26
11:02
+0:03
25.2M
25.20 mi15:03:543:48:169:034:20
12:34
+1:32
Finish
26.22 mi15:14:383:59:009:0710:44
10:32
-2:02

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

8:19 /mi

Average Pace

9:07 /mi

Slowest Pace

12:34 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:57

55% of race

Time at Steady Pace

48:07

20% of race

Time at Slower Pace

58:56

25% of race

Average Pace: 9:07 /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 mi11:41:5026:128:2626:12
8:26
#17412
10K
6.21 mi12:07:4052:028:2225:50
8:19
#16776
15K
9.32 mi12:33:591:18:218:2426:19
8:28
#16536
20K
12.43 mi13:00:501:45:128:2826:51
8:39
#16218
Half
13.11 mi13:06:371:50:598:285:47
8:29
#16162
25K
15.53 mi13:27:352:11:578:3020:58
8:39
#15734
30K
18.64 mi13:55:232:39:458:3427:48
8:57
#15196
20M
20.00 mi14:08:452:53:078:3913:22
9:50
#15274
21M
21.00 mi14:19:283:03:508:4510:43
10:43
#15292
35K
21.75 mi14:26:253:10:478:466:57
9:17
#15259
23M
23.00 mi14:39:093:23:318:5112:44
10:10
#15362
24M
24.00 mi14:50:083:34:308:5610:59
10:59
#15630
40K
24.85 mi14:59:343:43:569:019:26
11:02
#15757
25.2M
25.20 mi15:03:543:48:169:034:20
12:34
#15820
Finish
26.22 mi15:14:383:59:009:0710:44
10:32
#16051
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF55-59Seg. OverallSeg. FemalesSeg. F55-59
5K3.11 mi3.11 mi174126412641216251(Top 64%)5713(Top 52%)5713(Top 652%)
10K6.21 mi3.10 mi16776+6366029+3836029+38316221(Top 63%)5660(Top 52%)5660(Top 646%)
15K9.32 mi3.11 mi16536+2405874+1555874+15516251(Top 64%)5713(Top 52%)5713(Top 652%)
20K12.43 mi3.11 mi16218+3185701+1735701+17315538(Top 61%)5319(Top 49%)5319(Top 607%)
Half13.11 mi0.68 mi16162+565679+225679+2215630(Top 61%)5430(Top 50%)5430(Top 620%)
25K15.53 mi2.42 mi15734+4285449+2305449+23013848(Top 54%)4532(Top 41%)4532(Top 517%)
30K18.64 mi3.11 mi15196+5385199+2505199+25012985(Top 51%)4272(Top 39%)4272(Top 488%)
20M20.00 mi1.36 mi15274-785294-955294-9515902(Top 62%)6156(Top 56%)6156(Top 703%)
21M21.00 mi1.00 mi15292-185345-515345-5115530(Top 61%)6081(Top 56%)6081(Top 694%)
35K21.75 mi0.75 mi15259+335349-45349-414691(Top 57%)5694(Top 52%)5694(Top 650%)
23M23.00 mi1.25 mi15362-1035458-1095458-10916029(Top 63%)6411(Top 59%)6411(Top 732%)
24M24.00 mi1.00 mi15630-2685642-1845642-18419190(Top 75%)8053(Top 74%)8053(Top 919%)
40K24.85 mi0.85 mi15757-1275742-1005742-10018172(Top 71%)7579(Top 69%)7579(Top 865%)
25.2M25.20 mi0.35 mi15820-635786-445786-4418679(Top 73%)7847(Top 72%)7847(Top 896%)
Finish26.22 mi1.02 mi16051-2315937-1515937-15120119(Top 79%)8537(Top 78%)8537(Top 975%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21stories
+97ft-345ft

Overall

16251

Females

5713

F55-59

5713

5K→10K

3.1 - 6.2 mi

Top 63%
×5stories
+79ft-138ft

Overall

16221

Females

5660

F55-59

5660

10K→15K

6.2 - 9.3 mi

Top 64%
×3stories
+67ft-78ft

Overall

16251

Females

5713

F55-59

5713

15K→20K

9.3 - 12.4 mi

Top 61%
×5stories
+106ft-86ft

Overall

15538

Females

5319

F55-59

5319

20K→Half

12.4 - 13.1 mi

Top 61%
×2stories
+19ft-37ft

Overall

15630

Females

5430

F55-59

5430

Half→25K

13.1 - 15.5 mi

Top 54%
×4stories
+66ft-88ft

Overall

13848

Females

4532

F55-59

4532

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

12985

Females

4272

F55-59

4272

30K→20M

18.6 - 20.0 mi

Top 62%
×5stories
+64ft-50ft

Overall

15902

Females

6156

F55-59

6156

20M→21M

20.0 - 21.0 mi

Top 61%
×8stories
+106ft-24ft

Overall

15530

Females

6081

F55-59

6081

21M→35K

21.0 - 21.8 mi

Top 57%
×7stories
+17ft-86ft

Overall

14691

Females

5694

F55-59

5694

35K→23M

21.8 - 23.0 mi

Top 63%
×5stories
+23ft-63ft

Overall

16029

Females

6411

F55-59

6411

23M→24M

23.0 - 24.0 mi

Top 75%
×6stories
+12ft-82ft

Overall

19190

Females

8053

F55-59

8053

24M→40K

24.0 - 24.9 mi

Top 71%
×1story
+6ft-20ft

Overall

18172

Females

7579

F55-59

7579

40K→25.2M

24.9 - 25.2 mi

Top 73%
×1story
+13ft-16ft

Overall

18679

Females

7847

F55-59

7847

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2stories
+22ft-21ft

Overall

20119

Females

8537

F55-59

8537

Passing Analysis

Category:
Athletes Passed
3114
Passed By
1753
Net Change
+1361
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17412
5K → 10K72286+636#17412#16776
10K → 15K349109+240#16776#16536
15K → 20K422104+318#16536#16218
20K → Half7317+56#16218#16162
Half → 25K45830+428#16162#15734
25K → 30K57234+538#15734#15196
30K → 20M94172-78#15196#15274
20M → 21M122140-18#15274#15292
21M → 35K7643+33#15292#15259
35K → 23M90193-103#15259#15362
23M → 24M35303-268#15362#15630
24M → 40K49176-127#15630#15757
40K → 25.2M2184-63#15757#15820
25.2M → Finish31262-231#15820#16051
TOTALS31141753+1361
📊

Passing Visuals

Category:

📈Position Graph

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🎨Heatmap Timeline

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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