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BOSTON MARATHON 2024

Katherine Armstrong

Bib: 25816•F

RI

0:00
0:00
/ mi
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Overall
#0 / 25550
Gender (Female)
#0 / 10924
Division (F18-39)
#0 / 4660
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
29:07
Rank: #21343
Start → 5K
29:07 | 9:22/mi
10K· 6.21 mi
57:14
Rank: #20670 (+673)
5K → 10K
28:07 | 9:03/mi
15K· 9.32 mi
1:26:31
Rank: #20596 (+74)
10K → 15K
29:17 | 9:26/mi
20K· 12.43 mi
1:57:20
Rank: #20513 (+83)
15K → 20K
30:49 | 9:55/mi
Half· 13.11 mi
2:04:06
Rank: #20542 (-29)
20K → Half
6:46 | 9:55/mi
25K· 15.53 mi
2:30:29
Rank: #20663 (-121)
Half → 25K
26:23 | 10:53/mi
30K· 18.64 mi
3:05:35
Rank: #20654 (+9)
25K → 30K
35:06 | 11:18/mi
20M
3:21:25
Rank: #20647 (+7)
30K → 20M
15:50 | 11:39/mi
21M
3:35:34
Rank: #20801 (-154)
20M → 21M
14:09 | 14:09/mi
35K· 21.75 mi
3:43:52
Rank: #20768 (+33)
21M → 35K
8:18 | 11:06/mi
23M
3:57:52
Rank: #20651 (+117)
35K → 23M
14:00 | 11:11/mi
24M
4:09:11
Rank: #20622 (+29)
23M → 24M
11:19 | 11:19/mi
40K· 24.85 mi
4:20:25
Rank: #20708 (-86)
24M → 40K
11:14 | 13:08/mi
25.2M
4:24:29
Rank: #20636 (+72)
40K → 25.2M
4:04 | 11:48/mi
Finish· 26.22 mi
4:35:01
Rank: #20593 (+43)
25.2M → Finish
10:32 | 10:20/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:04:06
Pace9:28 /mi
2nd Half
Distance13.11 mi
Time2:30:55
Pace11:31 /mi
📊Positive Split: 21.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:1129:079:2229:07
9:22
-
10K
6.21 mi12:13:1857:149:1328:07
9:03
-0:19
15K
9.32 mi12:42:351:26:319:1729:17
9:26
+0:23
20K
12.43 mi13:13:241:57:209:2630:49
9:55
+0:29
Half
13.11 mi13:20:102:04:069:286:46
9:55
0:00
25K
15.53 mi13:46:332:30:299:4126:23
10:53
+0:58
30K
18.64 mi14:21:393:05:359:5735:06
11:18
+0:25
20M
20.00 mi14:37:293:21:2510:0415:50
11:39
+0:21
21M
21.00 mi14:51:383:35:3410:1614:09
14:09
+2:30
35K
21.75 mi14:59:563:43:5210:188:18
11:06
-3:03
23M
23.00 mi15:13:563:57:5210:2114:00
11:11
+0:05
24M
24.00 mi15:25:154:09:1110:2311:19
11:19
+0:08
40K
24.85 mi15:36:294:20:2510:2911:14
13:08
+1:49
25.2M
25.20 mi15:40:334:24:2910:304:04
11:48
-1:20
Finish
26.22 mi15:51:054:35:0110:3010:32
10:20
-1:28

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

9:03 /mi

Average Pace

10:30 /mi

Slowest Pace

14:09 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:38

49% of race

Time at Steady Pace

1:50:56

40% of race

Time at Slower Pace

29:27

11% of race

Average Pace: 10:29 /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 mi11:45:1129:079:2229:07
9:22
#21343
10K
6.21 mi12:13:1857:149:1328:07
9:03
#20670
15K
9.32 mi12:42:351:26:319:1729:17
9:26
#20596
20K
12.43 mi13:13:241:57:209:2630:49
9:55
#20513
Half
13.11 mi13:20:102:04:069:286:46
9:55
#20542
25K
15.53 mi13:46:332:30:299:4126:23
10:53
#20663
30K
18.64 mi14:21:393:05:359:5735:06
11:18
#20654
20M
20.00 mi14:37:293:21:2510:0415:50
11:39
#20647
21M
21.00 mi14:51:383:35:3410:1614:09
14:09
#20801
35K
21.75 mi14:59:563:43:5210:188:18
11:06
#20768
23M
23.00 mi15:13:563:57:5210:2114:00
11:11
#20651
24M
24.00 mi15:25:154:09:1110:2311:19
11:19
#20622
40K
24.85 mi15:36:294:20:2510:2911:14
13:08
#20708
25.2M
25.20 mi15:40:334:24:2910:304:04
11:48
#20636
Finish
26.22 mi15:51:054:35:0110:3010:32
10:20
#20593
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi213438592859220458(Top 80%)8039(Top 74%)8039(Top 173%)
10K6.21 mi3.10 mi20670+6738207+3858207+38519940(Top 78%)7799(Top 71%)7799(Top 167%)
15K9.32 mi3.11 mi20596+748140+678140+6720458(Top 80%)8039(Top 74%)8039(Top 173%)
20K12.43 mi3.11 mi20513+838101+398101+3920379(Top 80%)8025(Top 73%)8025(Top 172%)
Half13.11 mi0.68 mi20542-298122-218122-2121282(Top 83%)8556(Top 78%)8556(Top 184%)
25K15.53 mi2.42 mi20663-1218198-768198-7621263(Top 83%)8613(Top 79%)8613(Top 185%)
30K18.64 mi3.11 mi20654+98232-348232-3420623(Top 81%)8437(Top 77%)8437(Top 181%)
20M20.00 mi1.36 mi20647+78272-408272-4020729(Top 81%)8613(Top 79%)8613(Top 185%)
21M21.00 mi1.00 mi20801-1548379-1078379-10722530(Top 88%)9555(Top 87%)9555(Top 205%)
35K21.75 mi0.75 mi20768+338381-28381-220024(Top 78%)8355(Top 76%)8355(Top 179%)
23M23.00 mi1.25 mi20651+1178347+348347+3418917(Top 74%)7847(Top 72%)7847(Top 168%)
24M24.00 mi1.00 mi20622+298354-78354-720030(Top 78%)8456(Top 77%)8456(Top 181%)
40K24.85 mi0.85 mi20708-868414-608414-6022487(Top 88%)9694(Top 89%)9694(Top 208%)
25.2M25.20 mi0.35 mi20636+728384+308384+3016884(Top 66%)6994(Top 64%)6994(Top 150%)
Finish26.22 mi1.02 mi20593+438374+108374+1019535(Top 76%)8243(Top 75%)8243(Top 177%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 80%
×21stories
+97ft-345ft

Overall

20458

Females

8039

F18-39

8039

5K→10K

3.1 - 6.2 mi

Top 78%
×5stories
+79ft-138ft

Overall

19940

Females

7799

F18-39

7799

10K→15K

6.2 - 9.3 mi

Top 80%
×3stories
+67ft-78ft

Overall

20458

Females

8039

F18-39

8039

15K→20K

9.3 - 12.4 mi

Top 80%
×5stories
+106ft-86ft

Overall

20379

Females

8025

F18-39

8025

20K→Half

12.4 - 13.1 mi

Top 83%
×2stories
+19ft-37ft

Overall

21282

Females

8556

F18-39

8556

Half→25K

13.1 - 15.5 mi

Top 83%
×4stories
+66ft-88ft

Overall

21263

Females

8613

F18-39

8613

25K→30K

15.5 - 18.6 mi

Top 81%
×9stories
+181ft-148ft

Overall

20623

Females

8437

F18-39

8437

30K→20M

18.6 - 20.0 mi

Top 81%
×5stories
+64ft-50ft

Overall

20729

Females

8613

F18-39

8613

20M→21M

20.0 - 21.0 mi

Top 88%
×8stories
+106ft-24ft

Overall

22530

Females

9555

F18-39

9555

21M→35K

21.0 - 21.8 mi

Top 78%
×7stories
+17ft-86ft

Overall

20024

Females

8355

F18-39

8355

35K→23M

21.8 - 23.0 mi

Top 74%
×5stories
+23ft-63ft

Overall

18917

Females

7847

F18-39

7847

23M→24M

23.0 - 24.0 mi

Top 78%
×6stories
+12ft-82ft

Overall

20030

Females

8456

F18-39

8456

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

22487

Females

9694

F18-39

9694

40K→25.2M

24.9 - 25.2 mi

Top 66%
×1story
+13ft-16ft

Overall

16884

Females

6994

F18-39

6994

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

19535

Females

8243

F18-39

8243

Passing Analysis

Category:
Athletes Passed
2068
Passed By
1318
Net Change
+750
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#21343
5K → 10K71037+673#21343#20670
10K → 15K242168+74#20670#20596
15K → 20K223140+83#20596#20513
20K → Half2150-29#20513#20542
Half → 25K117238-121#20542#20663
25K → 30K182173+9#20663#20654
30K → 20M9184+7#20654#20647
20M → 21M32186-154#20647#20801
21M → 35K7643+33#20801#20768
35K → 23M13720+117#20768#20651
23M → 24M6940+29#20651#20622
24M → 40K30116-86#20622#20708
40K → 25.2M731+72#20708#20636
25.2M → Finish6522+43#20636#20593
TOTALS20681318+750
📊

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