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BOSTON MARATHON 2024

Chen-Ni Cheng

Bib: 13939 F TW

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Top 33%
Gender (Female)
#0 / 10924
Top 17%
Masters (Masters Women)
#0 / 6263
Top 7%
Division (F50-54)
#0 / 1187
Top 3%
Race Day Weather
55°/45°F
scattered clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:25/mi
23:03
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:30/mi
46:22
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:33/mi
1:09:50
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
8:01/mi
1:34:45
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:40/mi
1:39:59
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:51/mi
1:59:01
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
8:15/mi
2:24:40
↑ 181↓ 1480.2%
138 ft elev
20M
7:59/mi
2:35:31
↑ 64↓ 500.2%
148 ft elev
21M
8:39/mi
2:44:10
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:51/mi
2:50:02
↑ 17↓ 861.7%
156 ft elev
23M
8:24/mi
3:00:33
↑ 23↓ 630.6%
116 ft elev
24M
7:47/mi
3:08:20
↓ 821.3%
34 ft elev
40K· 24.85 mi
7:56/mi
3:15:07
↓ 200.3%
20 ft elev
25.2M
9:11/mi
3:18:17
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
7:18/mi
3:25:43
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

Half Splits

1st Half· via Half
1:39:597:38 /mi⚡ faster
2nd Half
1:45:448:04 /mi+5.8%
Positive split — 5.8% slower in the second half
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Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointTimeAvg PaceSegment LengthSegment TimeSegment PaceTrendDiff
5K
23:037:253.11 mi23:03
7:25
-
10K
46:227:283.10 mi23:19
7:30
+0:05
15K
1:09:507:303.11 mi23:28
7:33
+0:03
20K
1:34:457:373.11 mi24:55
8:01
+0:28
Half(13.11 mi)
1:39:597:380.68 mi5:14
7:40
-0:21
25K
1:59:017:402.42 mi19:02
7:51
+0:11
30K
2:24:407:463.11 mi25:39
8:15
+0:24
20M
2:35:317:471.36 mi10:51
7:59
-0:16
21M
2:44:107:491.00 mi8:39
8:39
+0:40
35K
2:50:027:490.75 mi5:52
7:51
-0:48
23M
3:00:337:511.25 mi10:31
8:24
+0:33
24M
3:08:207:511.00 mi7:47
7:47
-0:37
40K
3:15:077:510.85 mi6:47
7:56
+0:09
25.2M
3:18:177:520.35 mi3:10
9:11
+1:15
Finish(26.22 mi)
3:25:437:511.02 mi7:26
7:18
-1:53
Trend:
Faster pace
Steady pace
Slower pace

Checkpoints & Pacing

Pace Line

Fastest Pace

7:18 /mi

Average Pace

7:51 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Time at Faster Pace

1:17:16

38% of race

Time at Steady Pace

1:20:28

39% of race

Time at Slower Pace

47:59

23% of race

Average Pace: 7:51 /mi

Loading chart...
Faster pace (< avg)
Steady pace (≈ avg)
Slower pace (> avg)

Heatmap

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0mi6.6mi13.1mi19.7mi26.2mi
Pace:
Faster
Steady
Slower

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi10119207020701007422112211
10K6.21 mi3.10 mi10155-362135-652135-651032322582258
15K9.32 mi3.11 mi10107+482144-92144-91007422112211
20K12.43 mi3.11 mi10578-4712436-2922436-2921196832953295
Half13.11 mi0.68 mi10548+302431+52431+51039624862486
25K15.53 mi2.42 mi10236+3122330+1012330+101925621252125
30K18.64 mi3.11 mi9985+2512312+182312+18932023702370
20M20.00 mi1.36 mi9613+3722187+1252187+125669914221422
21M21.00 mi1.00 mi9344+2692111+762111+76692716821682
35K21.75 mi0.75 mi9216+1282076+352076+35686116851685
23M23.00 mi1.25 mi9034+1822054+222054+22792023512351
24M24.00 mi1.00 mi8837+1971998+561998+56549413071307
40K24.85 mi0.85 mi8629+2081956+421956+42550614281428
25.2M25.20 mi0.35 mi8588+411962-61962-6743323822382
Finish26.22 mi1.02 mi8355+2331898+641898+644523989989

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 39%
×21story building
+97ft-345ft

Overall

10074

Females

2211

F50-54

2211

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

10323

Females

2258

F50-54

2258

10K→15K

6.2 - 9.3 mi

Top 39%
×3story building
+67ft-78ft

Overall

10074

Females

2211

F50-54

2211

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

11968

Females

3295

F50-54

3295

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

10396

Females

2486

F50-54

2486

Half→25K

13.1 - 15.5 mi

Top 36%
×4story building
+66ft-88ft

Overall

9256

Females

2125

F50-54

2125

25K→30K

15.5 - 18.6 mi

Top 36%
×9story building
+181ft-148ft

Overall

9320

Females

2370

F50-54

2370

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

6699

Females

1422

F50-54

1422

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

6927

Females

1682

F50-54

1682

21M→35K

21.0 - 21.8 mi

Top 27%
×7story building
+17ft-86ft

Overall

6861

Females

1685

F50-54

1685

35K→23M

21.8 - 23.0 mi

Top 31%
×5story building
+23ft-63ft

Overall

7920

Females

2351

F50-54

2351

23M→24M

23.0 - 24.0 mi

Top 22%
×6story building
+12ft-82ft

Overall

5494

Females

1307

F50-54

1307

24M→40K

24.0 - 24.9 mi

Top 22%
×1story
+6ft-20ft

Overall

5506

Females

1428

F50-54

1428

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7433

Females

2382

F50-54

2382

25.2M→Finish

25.2 - 26.2 mi

Top 18%
×2story building
+22ft-21ft

Overall

4523

Females

989

F50-54

989

Passing Analysis

Category:
Athletes Passed
3178*
Passed By
1414
Net Change
+1764
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10119
5K → 10K264300-36#10119#10155
10K → 15K233*185+48#10155#10107
15K → 20K100571-471#10107#10578
20K → Half5727+30#10578#10548
Half → 25K36553+312#10548#10236
25K → 30K399148+251#10236#9985
30K → 20M3786+372#9985#9613
20M → 21M28819+269#9613#9344
21M → 35K14214+128#9344#9216
35K → 23M23654+182#9216#9034
23M → 24M2047+197#9034#8837
24M → 40K2168+208#8837#8629
40K → 25.2M5817+41#8629#8588
25.2M → Finish2385+233#8588#8355
TOTALS3178*1414+1764

* Includes athletes who did not complete a segment (DNF/DNQ).

Passing Charts

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