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BOSTON MARATHON 2024

Katherine Chandler

Bib: 19460•F

0:00
0:00
/ mi
Masters
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 43%
Masters (Masters Women)
#0 / 6263
Top 32%
Division (F40-44)
#0 / 1613
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
7:38/mi
23:44
↑ 97↓ 3451.5%
10K· 6.21 mi
7:42/mi
47:39
↑ 79↓ 1380.4%
15K· 9.32 mi
8:05/mi
1:12:46
↑ 67↓ 78
20K· 12.43 mi
8:40/mi
1:39:43
↑ 106↓ 860.1%
Half· 13.11 mi
8:29/mi
1:45:30
↑ 19↓ 370.5%
25K· 15.53 mi
9:06/mi
2:07:33
↑ 66↓ 880.2%
30K· 18.64 mi
9:39/mi
2:37:32
↑ 181↓ 1480.2%
20M
9:27/mi
2:50:23
↑ 64↓ 500.2%
21M
9:47/mi
3:00:10
↑ 106↓ 241.6%
35K· 21.75 mi
9:19/mi
3:07:08
↑ 17↓ 861.7%
23M
9:19/mi
3:18:48
↑ 23↓ 630.6%
24M
9:11/mi
3:27:59
↓ 821.3%
40K· 24.85 mi
8:57/mi
3:35:38
↓ 200.3%
25.2M
9:37/mi
3:38:57
↑ 13↓ 160.2%
Finish· 26.22 mi
8:23/mi
3:47:30
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:45:30
Pace8:03 /mi
2nd Half
Distance13.11 mi
Time2:02:00
Pace9:18 /mi
📊Positive Split: 15.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:0723:447:3823:44
7:38
-
10K
6.21 mi11:41:0247:397:4023:55
7:42
+0:04
15K
9.32 mi12:06:091:12:467:4825:07
8:05
+0:23
20K
12.43 mi12:33:061:39:438:0126:57
8:40
+0:35
Half
13.11 mi12:38:531:45:308:035:47
8:29
-0:11
25K
15.53 mi13:00:562:07:338:1322:03
9:06
+0:37
30K
18.64 mi13:30:552:37:328:2729:59
9:39
+0:33
20M
20.00 mi13:43:462:50:238:3112:51
9:27
-0:12
21M
21.00 mi13:53:333:00:108:359:47
9:47
+0:20
35K
21.75 mi14:00:313:07:088:366:58
9:19
-0:28
23M
23.00 mi14:12:113:18:488:3911:40
9:19
0:00
24M
24.00 mi14:21:223:27:598:409:11
9:11
-0:08
40K
24.85 mi14:29:013:35:388:417:39
8:57
-0:14
25.2M
25.20 mi14:32:203:38:578:413:19
9:37
+0:40
Finish
26.22 mi14:40:533:47:308:418:33
8:23
-1:14

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

7:38 /mi

Average Pace

8:41 /mi

Slowest Pace

9:47 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:54:03

50% of race

Time at Steady Pace

57:31

25% of race

Time at Slower Pace

55:56

25% of race

Average Pace: 8:41 /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 mi11:17:0723:447:3823:44
7:38
#11846
10K
6.21 mi11:41:0247:397:4023:55
7:42
#11830
15K
9.32 mi12:06:091:12:467:4825:07
8:05
#12584
20K
12.43 mi12:33:061:39:438:0126:57
8:40
#13601
Half
13.11 mi12:38:531:45:308:035:47
8:29
#13698
25K
15.53 mi13:00:562:07:338:1322:03
9:06
#14106
30K
18.64 mi13:30:552:37:328:2729:59
9:39
#14534
20M
20.00 mi13:43:462:50:238:3112:51
9:27
#14497
21M
21.00 mi13:53:333:00:108:359:47
9:47
#14321
35K
21.75 mi14:00:313:07:088:366:58
9:19
#14316
23M
23.00 mi14:12:113:18:488:3911:40
9:19
#14205
24M
24.00 mi14:21:223:27:598:409:11
9:11
#14144
40K
24.85 mi14:29:013:35:388:417:39
8:57
#13975
25.2M
25.20 mi14:32:203:38:578:413:19
9:37
#13865
Finish
26.22 mi14:40:533:47:308:418:33
8:23
#13719
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi118463045304514015(Top 55%)4372(Top 40%)4372(Top 271%)
10K6.21 mi3.10 mi11830+163075-303075-3011882(Top 47%)3126(Top 29%)3126(Top 194%)
15K9.32 mi3.11 mi12584-7543510-4353510-43514015(Top 55%)4372(Top 40%)4372(Top 271%)
20K12.43 mi3.11 mi13601-10174118-6084118-60815710(Top 61%)5409(Top 50%)5409(Top 335%)
Half13.11 mi0.68 mi13698-974185-674185-6715579(Top 61%)5379(Top 49%)5379(Top 333%)
25K15.53 mi2.42 mi14106-4084467-2824467-28215948(Top 62%)5685(Top 52%)5685(Top 352%)
30K18.64 mi3.11 mi14534-4284805-3384805-33816047(Top 63%)5996(Top 55%)5996(Top 372%)
20M20.00 mi1.36 mi14497+374818-134818-1314340(Top 56%)5312(Top 49%)5312(Top 329%)
21M21.00 mi1.00 mi14321+1764774+444774+4412077(Top 47%)4303(Top 39%)4303(Top 267%)
35K21.75 mi0.75 mi14316+54802-284802-2814777(Top 58%)5725(Top 52%)5725(Top 355%)
23M23.00 mi1.25 mi14205+1114794+84794+812684(Top 50%)4754(Top 44%)4754(Top 295%)
24M24.00 mi1.00 mi14144+614810-164810-1613046(Top 51%)4951(Top 45%)4951(Top 307%)
40K24.85 mi0.85 mi13975+1694760+504760+5010646(Top 42%)3897(Top 36%)3897(Top 242%)
25.2M25.20 mi0.35 mi13865+1104714+464714+469312(Top 36%)3327(Top 30%)3327(Top 206%)
Finish26.22 mi1.02 mi13719+1464663+514663+5110936(Top 43%)3957(Top 36%)3957(Top 245%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 55%
×21story building
+97ft-345ft

Overall

14015

Females

4372

F40-44

4372

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

11882

Females

3126

F40-44

3126

10K→15K

6.2 - 9.3 mi

Top 55%
×3story building
+67ft-78ft

Overall

14015

Females

4372

F40-44

4372

15K→20K

9.3 - 12.4 mi

Top 61%
×5story building
+106ft-86ft

Overall

15710

Females

5409

F40-44

5409

20K→Half

12.4 - 13.1 mi

Top 61%
×2story building
+19ft-37ft

Overall

15579

Females

5379

F40-44

5379

Half→25K

13.1 - 15.5 mi

Top 62%
×4story building
+66ft-88ft

Overall

15948

Females

5685

F40-44

5685

25K→30K

15.5 - 18.6 mi

Top 63%
×9story building
+181ft-148ft

Overall

16047

Females

5996

F40-44

5996

30K→20M

18.6 - 20.0 mi

Top 56%
×5story building
+64ft-50ft

Overall

14340

Females

5312

F40-44

5312

20M→21M

20.0 - 21.0 mi

Top 47%
×8story building
+106ft-24ft

Overall

12077

Females

4303

F40-44

4303

21M→35K

21.0 - 21.8 mi

Top 58%
×7story building
+17ft-86ft

Overall

14777

Females

5725

F40-44

5725

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

12684

Females

4754

F40-44

4754

23M→24M

23.0 - 24.0 mi

Top 51%
×6story building
+12ft-82ft

Overall

13046

Females

4951

F40-44

4951

24M→40K

24.0 - 24.9 mi

Top 42%
×1story
+6ft-20ft

Overall

10646

Females

3897

F40-44

3897

40K→25.2M

24.9 - 25.2 mi

Top 36%
×1story
+13ft-16ft

Overall

9312

Females

3327

F40-44

3327

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

10936

Females

3957

F40-44

3957

Passing Analysis

Category:
Athletes Passed
1949
Passed By
3822
Net Change
-1873
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11846
5K → 10K293277+16#11846#11830
10K → 15K66820-754#11830#12584
15K → 20K761093-1017#12584#13601
20K → Half20117-97#13601#13698
Half → 25K112520-408#13698#14106
25K → 30K165593-428#14106#14534
30K → 20M157120+37#14534#14497
20M → 21M21842+176#14497#14321
21M → 35K8883+5#14321#14316
35K → 23M17867+111#14316#14205
23M → 24M12059+61#14205#14144
24M → 40K1789+169#14144#13975
40K → 25.2M1111+110#13975#13865
25.2M → Finish16721+146#13865#13719
TOTALS19493822-1873
📊

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