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BOSTON MARATHON 2024

Kathryn Seyfarth

Bib: 12395•F

MA

0:00
0:00
/ mi
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Overall
#0 / 25550
Top 25%
Gender (Female)
#0 / 10924
Top 10%
Division (F18-39)
#0 / 4660
Top 18%
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
7:16/mi
22:35
↑ 97↓ 3451.5%
10K· 6.21 mi
7:11/mi
44:54
↑ 79↓ 1380.4%
15K· 9.32 mi
7:19/mi
1:07:39
↑ 67↓ 78
20K· 12.43 mi
7:34/mi
1:31:08
↑ 106↓ 860.1%
Half· 13.11 mi
7:18/mi
1:36:07
↑ 19↓ 370.5%
25K· 15.53 mi
7:47/mi
1:55:00
↑ 66↓ 880.2%
30K· 18.64 mi
7:50/mi
2:19:19
↑ 181↓ 1480.2%
20M
7:51/mi
2:29:59
↑ 64↓ 500.2%
21M
8:16/mi
2:38:15
↑ 106↓ 241.6%
35K· 21.75 mi
7:38/mi
2:43:58
↑ 17↓ 861.7%
23M
7:46/mi
2:53:41
↑ 23↓ 630.6%
24M
7:36/mi
3:01:17
↓ 821.3%
40K· 24.85 mi
7:42/mi
3:07:52
↓ 200.3%
25.2M
8:27/mi
3:10:47
↑ 13↓ 160.2%
Finish· 26.22 mi
7:03/mi
3:17:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:36:07
Pace7:20 /mi
2nd Half
Distance13.11 mi
Time1:41:51
Pace7:46 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:0622:357:1622:35
7:16
-
10K
6.21 mi11:13:2544:547:1422:19
7:11
-0:05
15K
9.32 mi11:36:101:07:397:1522:45
7:19
+0:08
20K
12.43 mi11:59:391:31:087:2023:29
7:34
+0:15
Half
13.11 mi12:04:381:36:077:204:59
7:18
-0:16
25K
15.53 mi12:23:311:55:007:2418:53
7:47
+0:29
30K
18.64 mi12:47:502:19:197:2824:19
7:50
+0:03
20M
20.00 mi12:58:302:29:597:3010:40
7:51
+0:01
21M
21.00 mi13:06:462:38:157:328:16
8:16
+0:25
35K
21.75 mi13:12:292:43:587:325:43
7:38
-0:38
23M
23.00 mi13:22:122:53:417:339:43
7:46
+0:08
24M
24.00 mi13:29:483:01:177:337:36
7:36
-0:10
40K
24.85 mi13:36:233:07:527:346:35
7:42
+0:06
25.2M
25.20 mi13:39:183:10:477:342:55
8:27
+0:45
Finish
26.22 mi13:46:293:17:587:337:11
7:03
-1:24

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

7:03 /mi

Average Pace

7:33 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:03:12

62% of race

Time at Steady Pace

1:11:51

36% of race

Time at Slower Pace

2:55

1% of race

Average Pace: 7:33 /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 mi10:51:0622:357:1622:35
7:16
#8948
10K
6.21 mi11:13:2544:547:1422:19
7:11
#8334
15K
9.32 mi11:36:101:07:397:1522:45
7:19
#8276
20K
12.43 mi11:59:391:31:087:2023:29
7:34
#8358
Half
13.11 mi12:04:381:36:077:204:59
7:18
#8322
25K
15.53 mi12:23:311:55:007:2418:53
7:47
#8345
30K
18.64 mi12:47:502:19:197:2824:19
7:50
#7958
20M
20.00 mi12:58:302:29:597:3010:40
7:51
#7747
21M
21.00 mi13:06:462:38:157:328:16
8:16
#7483
35K
21.75 mi13:12:292:43:587:325:43
7:38
#7353
23M
23.00 mi13:22:122:53:417:339:43
7:46
#7050
24M
24.00 mi13:29:483:01:177:337:36
7:36
#6851
40K
24.85 mi13:36:233:07:527:346:35
7:42
#6650
25.2M
25.20 mi13:39:183:10:477:342:55
8:27
#6578
Finish
26.22 mi13:46:293:17:587:337:11
7:03
#6386
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi8948155715578320(Top 33%)1392(Top 13%)1392(Top 30%)
10K6.21 mi3.10 mi8334+6141342+2151342+2157823(Top 31%)1170(Top 11%)1170(Top 25%)
15K9.32 mi3.11 mi8276+581338+41338+48320(Top 33%)1392(Top 13%)1392(Top 30%)
20K12.43 mi3.11 mi8358-821390-521390-528804(Top 34%)1726(Top 16%)1726(Top 37%)
Half13.11 mi0.68 mi8322+361378+121378+127746(Top 30%)1257(Top 12%)1257(Top 27%)
25K15.53 mi2.42 mi8345-231437-591437-598851(Top 35%)1923(Top 18%)1923(Top 41%)
30K18.64 mi3.11 mi7958+3871381+561381+566882(Top 27%)1303(Top 12%)1303(Top 28%)
20M20.00 mi1.36 mi7747+2111330+511330+515978(Top 23%)1119(Top 10%)1119(Top 24%)
21M21.00 mi1.00 mi7483+2641265+651265+655208(Top 20%)971(Top 9%)971(Top 21%)
35K21.75 mi0.75 mi7353+1301241+241241+245824(Top 23%)1224(Top 11%)1224(Top 26%)
23M23.00 mi1.25 mi7050+3031175+661175+664641(Top 18%)853(Top 8%)853(Top 18%)
24M24.00 mi1.00 mi6851+1991146+291146+294563(Top 18%)912(Top 8%)912(Top 20%)
40K24.85 mi0.85 mi6650+2011119+271119+274354(Top 17%)927(Top 8%)927(Top 20%)
25.2M25.20 mi0.35 mi6578+721106+131106+134323(Top 17%)951(Top 9%)951(Top 20%)
Finish26.22 mi1.02 mi6386+1921073+331073+333378(Top 13%)587(Top 5%)587(Top 13%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 33%
×21story building
+97ft-345ft

Overall

8320

Females

1392

F18-39

1392

5K→10K

3.1 - 6.2 mi

Top 31%
×5story building
+79ft-138ft

Overall

7823

Females

1170

F18-39

1170

10K→15K

6.2 - 9.3 mi

Top 33%
×3story building
+67ft-78ft

Overall

8320

Females

1392

F18-39

1392

15K→20K

9.3 - 12.4 mi

Top 34%
×5story building
+106ft-86ft

Overall

8804

Females

1726

F18-39

1726

20K→Half

12.4 - 13.1 mi

Top 30%
×2story building
+19ft-37ft

Overall

7746

Females

1257

F18-39

1257

Half→25K

13.1 - 15.5 mi

Top 35%
×4story building
+66ft-88ft

Overall

8851

Females

1923

F18-39

1923

25K→30K

15.5 - 18.6 mi

Top 27%
×9story building
+181ft-148ft

Overall

6882

Females

1303

F18-39

1303

30K→20M

18.6 - 20.0 mi

Top 23%
×5story building
+64ft-50ft

Overall

5978

Females

1119

F18-39

1119

20M→21M

20.0 - 21.0 mi

Top 20%
×8story building
+106ft-24ft

Overall

5208

Females

971

F18-39

971

21M→35K

21.0 - 21.8 mi

Top 23%
×7story building
+17ft-86ft

Overall

5824

Females

1224

F18-39

1224

35K→23M

21.8 - 23.0 mi

Top 18%
×5story building
+23ft-63ft

Overall

4641

Females

853

F18-39

853

23M→24M

23.0 - 24.0 mi

Top 18%
×6story building
+12ft-82ft

Overall

4563

Females

912

F18-39

912

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4354

Females

927

F18-39

927

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4323

Females

951

F18-39

951

25.2M→Finish

25.2 - 26.2 mi

Top 13%
×2story building
+22ft-21ft

Overall

3378

Females

587

F18-39

587

Passing Analysis

Category:
Athletes Passed
3408
Passed By
846
Net Change
+2562
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8948
5K → 10K65945+614#8948#8334
10K → 15K202144+58#8334#8276
15K → 20K163245-82#8276#8358
20K → Half5014+36#8358#8322
Half → 25K197220-23#8322#8345
25K → 30K46881+387#8345#7958
30K → 20M23726+211#7958#7747
20M → 21M27612+264#7747#7483
21M → 35K14414+130#7483#7353
35K → 23M31512+303#7353#7050
23M → 24M20910+199#7050#6851
24M → 40K2087+201#6851#6650
40K → 25.2M797+72#6650#6578
25.2M → Finish2019+192#6578#6386
TOTALS3408846+2562
📊

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