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BOSTON MARATHON 2024

Feifei Dong

Bib: 9352•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 18%
Gender (Female)
#0 / 10924
Top 5%
Masters (Masters Women)
#0 / 6263
Top 1%
Division (F40-44)
#0 / 1613
Top 4%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
22:22
Rank: #8422
Start → 5K
22:22 | 7:12/mi
10K· 6.21 mi
44:14
Rank: #7574 (+848)
5K → 10K
21:52 | 7:02/mi
15K· 9.32 mi
1:05:51
Rank: #7009 (+565)
10K → 15K
21:37 | 6:57/mi
20K· 12.43 mi
1:27:42
Rank: #6523 (+486)
15K → 20K
21:51 | 7:02/mi
Half· 13.11 mi
1:32:31
Rank: #6488 (+35)
20K → Half
4:49 | 7:04/mi
25K· 15.53 mi
1:49:43
Rank: #6117 (+371)
Half → 25K
17:12 | 7:06/mi
30K· 18.64 mi
2:13:52
Rank: #6050 (+67)
25K → 30K
24:09 | 7:46/mi
20M
2:23:49
Rank: #5757 (+293)
30K → 20M
9:57 | 7:19/mi
21M
2:31:37
Rank: #5503 (+254)
20M → 21M
7:48 | 7:48/mi
35K· 21.75 mi
2:37:08
Rank: #5408 (+95)
21M → 35K
5:31 | 7:22/mi
23M
2:46:38
Rank: #5203 (+205)
35K → 23M
9:30 | 7:35/mi
24M
2:54:00
Rank: #5047 (+156)
23M → 24M
7:22 | 7:22/mi
40K· 24.85 mi
3:00:16
Rank: #4853 (+194)
24M → 40K
6:16 | 7:20/mi
25.2M
3:03:00
Rank: #4785 (+68)
40K → 25.2M
2:44 | 7:56/mi
Finish· 26.22 mi
3:09:51
Rank: #4609 (+176)
25.2M → Finish
6:51 | 6:43/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:32:31
Pace7:03 /mi
2nd Half
Distance13.11 mi
Time1:37:20
Pace7:25 /mi
📊Positive Split: 5.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:48:3522:227:1222:22
7:12
-
10K
6.21 mi11:10:2744:147:0721:52
7:02
-0:10
15K
9.32 mi11:32:041:05:517:0421:37
6:57
-0:05
20K
12.43 mi11:53:551:27:427:0321:51
7:02
+0:05
Half
13.11 mi11:58:441:32:317:034:49
7:04
+0:02
25K
15.53 mi12:15:561:49:437:0417:12
7:06
+0:02
30K
18.64 mi12:40:052:13:527:1124:09
7:46
+0:40
20M
20.00 mi12:50:022:23:497:119:57
7:19
-0:27
21M
21.00 mi12:57:502:31:377:137:48
7:48
+0:29
35K
21.75 mi13:03:212:37:087:145:31
7:22
-0:26
23M
23.00 mi13:12:512:46:387:159:30
7:35
+0:13
24M
24.00 mi13:20:132:54:007:157:22
7:22
-0:13
40K
24.85 mi13:26:293:00:167:156:16
7:20
-0:02
25.2M
25.20 mi13:29:133:03:007:162:44
7:56
+0:36
Finish
26.22 mi13:36:043:09:517:156:51
6:43
-1:13

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

6:43 /mi

Average Pace

7:15 /mi

Slowest Pace

7:56 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:25:40

77% of race

Time at Steady Pace

41:27

22% of race

Time at Slower Pace

2:44

1% of race

Average Pace: 7:14 /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 mi10:48:3522:227:1222:22
7:12
#8422
10K
6.21 mi11:10:2744:147:0721:52
7:02
#7574
15K
9.32 mi11:32:041:05:517:0421:37
6:57
#7009
20K
12.43 mi11:53:551:27:427:0321:51
7:02
#6523
Half
13.11 mi11:58:441:32:317:034:49
7:04
#6488
25K
15.53 mi12:15:561:49:437:0417:12
7:06
#6117
30K
18.64 mi12:40:052:13:527:1124:09
7:46
#6050
20M
20.00 mi12:50:022:23:497:119:57
7:19
#5757
21M
21.00 mi12:57:502:31:377:137:48
7:48
#5503
35K
21.75 mi13:03:212:37:087:145:31
7:22
#5408
23M
23.00 mi13:12:512:46:387:159:30
7:35
#5203
24M
24.00 mi13:20:132:54:007:157:22
7:22
#5047
40K
24.85 mi13:26:293:00:167:156:16
7:20
#4853
25.2M
25.20 mi13:29:133:03:007:162:44
7:56
#4785
Finish
26.22 mi13:36:043:09:517:156:51
6:43
#4609
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi8422134113415976(Top 23%)600(Top 5%)600(Top 37%)
10K6.21 mi3.10 mi7574+8481036+3051036+3056913(Top 27%)841(Top 8%)841(Top 52%)
15K9.32 mi3.11 mi7009+565874+162874+1625976(Top 23%)600(Top 5%)600(Top 37%)
20K12.43 mi3.11 mi6523+486742+132742+1325447(Top 21%)520(Top 5%)520(Top 32%)
Half13.11 mi0.68 mi6488+35739+3739+36150(Top 24%)710(Top 6%)710(Top 44%)
25K15.53 mi2.42 mi6117+371666+73666+734793(Top 19%)467(Top 4%)467(Top 29%)
30K18.64 mi3.11 mi6050+67702-36702-366544(Top 26%)1170(Top 11%)1170(Top 73%)
20M20.00 mi1.36 mi5757+293659+43659+433657(Top 14%)354(Top 3%)354(Top 22%)
21M21.00 mi1.00 mi5503+254616+43616+433472(Top 14%)388(Top 4%)388(Top 24%)
35K21.75 mi0.75 mi5408+95608+8608+84511(Top 18%)686(Top 6%)686(Top 43%)
23M23.00 mi1.25 mi5203+205584+24584+243967(Top 16%)593(Top 5%)593(Top 37%)
24M24.00 mi1.00 mi5047+156566+18566+183624(Top 14%)545(Top 5%)545(Top 34%)
40K24.85 mi0.85 mi4853+194539+27539+272932(Top 11%)398(Top 4%)398(Top 25%)
25.2M25.20 mi0.35 mi4785+68533+6533+62582(Top 10%)353(Top 3%)353(Top 22%)
Finish26.22 mi1.02 mi4609+176516+17516+172091(Top 8%)262(Top 2%)262(Top 16%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 23%
×21stories
+97ft-345ft

Overall

5976

Females

600

F40-44

600

5K→10K

3.1 - 6.2 mi

Top 27%
×5stories
+79ft-138ft

Overall

6913

Females

841

F40-44

841

10K→15K

6.2 - 9.3 mi

Top 23%
×3stories
+67ft-78ft

Overall

5976

Females

600

F40-44

600

15K→20K

9.3 - 12.4 mi

Top 21%
×5stories
+106ft-86ft

Overall

5447

Females

520

F40-44

520

20K→Half

12.4 - 13.1 mi

Top 24%
×2stories
+19ft-37ft

Overall

6150

Females

710

F40-44

710

Half→25K

13.1 - 15.5 mi

Top 19%
×4stories
+66ft-88ft

Overall

4793

Females

467

F40-44

467

25K→30K

15.5 - 18.6 mi

Top 26%
×9stories
+181ft-148ft

Overall

6544

Females

1170

F40-44

1170

30K→20M

18.6 - 20.0 mi

Top 14%
×5stories
+64ft-50ft

Overall

3657

Females

354

F40-44

354

20M→21M

20.0 - 21.0 mi

Top 14%
×8stories
+106ft-24ft

Overall

3472

Females

388

F40-44

388

21M→35K

21.0 - 21.8 mi

Top 18%
×7stories
+17ft-86ft

Overall

4511

Females

686

F40-44

686

35K→23M

21.8 - 23.0 mi

Top 16%
×5stories
+23ft-63ft

Overall

3967

Females

593

F40-44

593

23M→24M

23.0 - 24.0 mi

Top 14%
×6stories
+12ft-82ft

Overall

3624

Females

545

F40-44

545

24M→40K

24.0 - 24.9 mi

Top 11%
×1story
+6ft-20ft

Overall

2932

Females

398

F40-44

398

40K→25.2M

24.9 - 25.2 mi

Top 10%
×1story
+13ft-16ft

Overall

2582

Females

353

F40-44

353

25.2M→Finish

25.2 - 26.2 mi

Top 8%
×2stories
+22ft-21ft

Overall

2091

Females

262

F40-44

262

Passing Analysis

Category:
Athletes Passed
4095
Passed By
282
Net Change
+3813
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8422
5K → 10K86517+848#8422#7574
10K → 15K5683+565#7574#7009
15K → 20K4904+486#7009#6523
20K → Half5318+35#6523#6488
Half → 25K38110+371#6488#6117
25K → 30K243176+67#6117#6050
30K → 20M2952+293#6050#5757
20M → 21M2595+254#5757#5503
21M → 35K11217+95#5503#5408
35K → 23M22015+205#5408#5203
23M → 24M1648+156#5203#5047
24M → 40K1951+194#5047#4853
40K → 25.2M724+68#4853#4785
25.2M → Finish1782+176#4785#4609
TOTALS4095282+3813
📊

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