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BOSTON MARATHON 2024

Janet Chiu

Bib: 23186•F

BC

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Masters (Masters Women)
#0 / 6263
Division (F65-69)
#0 / 216
Top 39%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
8:43/mi
27:06
↑ 97↓ 3451.5%
10K· 6.21 mi
8:58/mi
54:58
↑ 79↓ 1380.4%
15K· 9.32 mi
9:13/mi
1:23:37
↑ 67↓ 78
20K· 12.43 mi
9:53/mi
1:54:18
↑ 106↓ 860.1%
Half· 13.11 mi
9:40/mi
2:00:54
↑ 19↓ 370.5%
25K· 15.53 mi
10:18/mi
2:25:52
↑ 66↓ 880.2%
30K· 18.64 mi
11:00/mi
3:00:02
↑ 181↓ 1480.2%
20M
11:08/mi
3:15:10
↑ 64↓ 500.2%
21M
28:31/mi
3:43:41
↑ 106↓ 241.6%
35K· 21.75 mi
9:19/mi
3:50:39
↑ 17↓ 861.7%
23M
10:13/mi
4:03:27
↑ 23↓ 630.6%
24M
10:08/mi
4:13:35
↓ 821.3%
40K· 24.85 mi
11:20/mi
4:23:16
↓ 200.3%
25.2M
12:51/mi
4:27:42
↑ 13↓ 160.2%
Finish· 26.22 mi
10:41/mi
4:38:35
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:00:54
Pace9:13 /mi
2nd Half
Distance13.11 mi
Time2:37:41
Pace12:02 /mi
📊Positive Split: 30.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:5627:068:4327:06
8:43
-
10K
6.21 mi11:53:4854:588:5127:52
8:58
+0:15
15K
9.32 mi12:22:271:23:378:5828:39
9:13
+0:15
20K
12.43 mi12:53:081:54:189:1230:41
9:53
+0:40
Half
13.11 mi12:59:442:00:549:136:36
9:40
-0:13
25K
15.53 mi13:24:422:25:529:2324:58
10:18
+0:38
30K
18.64 mi13:58:523:00:029:3934:10
11:00
+0:42
20M
20.00 mi14:14:003:15:109:4515:08
11:08
+0:08
21M
21.00 mi14:42:313:43:4110:3928:31
28:31
+17:23
35K
21.75 mi14:49:293:50:3910:366:58
9:19
-19:12
23M
23.00 mi15:02:174:03:2710:3512:48
10:13
+0:54
24M
24.00 mi15:12:254:13:3510:3410:08
10:08
-0:05
40K
24.85 mi15:22:064:23:1610:369:41
11:20
+1:12
25.2M
25.20 mi15:26:324:27:4210:374:26
12:51
+1:31
Finish
26.22 mi15:37:254:38:3510:3810:53
10:41
-2:10

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

8:43 /mi

Average Pace

10:38 /mi

Slowest Pace

28:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

0:00

0% of race

Time at Steady Pace

4:05:38

88% of race

Time at Slower Pace

32:57

12% of race

Average Pace: 10:37 /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 mi11:25:5627:068:4327:06
8:43
#18944
10K
6.21 mi11:53:4854:588:5127:52
8:58
#19263
15K
9.32 mi12:22:271:23:378:5828:39
9:13
#19451
20K
12.43 mi12:53:081:54:189:1230:41
9:53
#19731
Half
13.11 mi12:59:442:00:549:136:36
9:40
#19800
25K
15.53 mi13:24:422:25:529:2324:58
10:18
#19829
30K
18.64 mi13:58:523:00:029:3934:10
11:00
#19844
20M
20.00 mi14:14:003:15:109:4515:08
11:08
#19820
21M
21.00 mi14:42:313:43:4110:3928:31
28:31
#21721
35K
21.75 mi14:49:293:50:3910:366:58
9:19
#21509
23M
23.00 mi15:02:174:03:2710:3512:48
10:13
#21241
24M
24.00 mi15:12:254:13:3510:3410:08
10:08
#21037
40K
24.85 mi15:22:064:23:1610:369:41
11:20
#20956
25.2M
25.20 mi15:26:324:27:4210:374:26
12:51
#20938
Finish
26.22 mi15:37:254:38:3510:3810:53
10:41
#20910
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF65-69Seg. OverallSeg. FemalesSeg. F65-69
5K3.11 mi3.11 mi189447318731819802(Top 78%)7679(Top 70%)7679(Top 3555%)
10K6.21 mi3.10 mi19263-3197471-1537471-15319634(Top 77%)7640(Top 70%)7640(Top 3537%)
15K9.32 mi3.11 mi19451-1887548-777548-7719802(Top 78%)7679(Top 70%)7679(Top 3555%)
20K12.43 mi3.11 mi19731-2807678-1307678-13020270(Top 79%)7967(Top 73%)7967(Top 3688%)
Half13.11 mi0.68 mi19800-697722-447722-4420615(Top 81%)8219(Top 75%)8219(Top 3805%)
25K15.53 mi2.42 mi19829-297752-307752-3019920(Top 78%)7883(Top 72%)7883(Top 3650%)
30K18.64 mi3.11 mi19844-157810-587810-5819995(Top 78%)8110(Top 74%)8110(Top 3755%)
20M20.00 mi1.36 mi19820+247826-167826-1619591(Top 77%)8012(Top 73%)8012(Top 3709%)
21M21.00 mi1.00 mi21721-19018865-10398865-103925529(Top 100%)10917(Top 100%)10917(Top 5054%)
35K21.75 mi0.75 mi21509+2128770+958770+9514808(Top 58%)5756(Top 53%)5756(Top 2665%)
23M23.00 mi1.25 mi21241+2688660+1108660+11016212(Top 63%)6507(Top 60%)6507(Top 3013%)
24M24.00 mi1.00 mi21037+2048570+908570+9016788(Top 66%)6848(Top 63%)6848(Top 3170%)
40K24.85 mi0.85 mi20956+818540+308540+3018929(Top 74%)7977(Top 73%)7977(Top 3693%)
25.2M25.20 mi0.35 mi20938+188540854019382(Top 76%)8214(Top 75%)8214(Top 3803%)
Finish26.22 mi1.02 mi20910+288529+118529+1120523(Top 80%)8737(Top 80%)8737(Top 4045%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 78%
×21story building
+97ft-345ft

Overall

19802

Females

7679

F65-69

7679

5K→10K

3.1 - 6.2 mi

Top 77%
×5story building
+79ft-138ft

Overall

19634

Females

7640

F65-69

7640

10K→15K

6.2 - 9.3 mi

Top 78%
×3story building
+67ft-78ft

Overall

19802

Females

7679

F65-69

7679

15K→20K

9.3 - 12.4 mi

Top 79%
×5story building
+106ft-86ft

Overall

20270

Females

7967

F65-69

7967

20K→Half

12.4 - 13.1 mi

Top 81%
×2story building
+19ft-37ft

Overall

20615

Females

8219

F65-69

8219

Half→25K

13.1 - 15.5 mi

Top 78%
×4story building
+66ft-88ft

Overall

19920

Females

7883

F65-69

7883

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

19995

Females

8110

F65-69

8110

30K→20M

18.6 - 20.0 mi

Top 77%
×5story building
+64ft-50ft

Overall

19591

Females

8012

F65-69

8012

20M→21M

20.0 - 21.0 mi

Top 100%
×8story building
+106ft-24ft

Overall

25529

Females

10917

F65-69

10917

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

14808

Females

5756

F65-69

5756

35K→23M

21.8 - 23.0 mi

Top 63%
×5story building
+23ft-63ft

Overall

16212

Females

6507

F65-69

6507

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

16788

Females

6848

F65-69

6848

24M→40K

24.0 - 24.9 mi

Top 74%
×1story
+6ft-20ft

Overall

18929

Females

7977

F65-69

7977

40K→25.2M

24.9 - 25.2 mi

Top 76%
×1story
+13ft-16ft

Overall

19382

Females

8214

F65-69

8214

25.2M→Finish

25.2 - 26.2 mi

Top 80%
×2story building
+22ft-21ft

Overall

20523

Females

8737

F65-69

8737

Passing Analysis

Category:
Athletes Passed
1794
Passed By
3760
Net Change
-1966
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#18944
5K → 10K148467-319#18944#19263
10K → 15K168356-188#19263#19451
15K → 20K147427-280#19451#19731
20K → Half1988-69#19731#19800
Half → 25K163192-29#19800#19829
25K → 30K175190-15#19829#19844
30K → 20M9571+24#19844#19820
20M → 21M21903-1901#19820#21721
21M → 35K2120+212#21721#21509
35K → 23M2680+268#21509#21241
23M → 24M2062+204#21241#21037
24M → 40K9716+81#21037#20956
40K → 25.2M2911+18#20956#20938
25.2M → Finish6537+28#20938#20910
TOTALS17943760-1966
📊

Passing Visuals

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