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BOSTON MARATHON 2024

Katelyn Halstead

Bib: 25340•F

NY

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
31:07
Rank: #23027
Start → 5K
10:01/mi
31:07 split
10K· 6.21 mi
1:03:08
Rank: #23116 (-89)
5K → 10K
10:18/mi
32:01 split
15K· 9.32 mi
1:33:43
Rank: #22604 (+512)
10K → 15K
9:51/mi
30:35 split
20K· 12.43 mi
2:08:25
Rank: #22695 (-91)
15K → 20K
11:10/mi
34:42 split
Half· 13.11 mi
2:14:51
Rank: #22582 (+113)
20K → Half
9:26/mi
6:26 split
25K· 15.53 mi
2:39:23
Rank: #22120 (+462)
Half → 25K
10:07/mi
24:32 split
30K· 18.64 mi
3:14:44
Rank: #21846 (+274)
25K → 30K
11:23/mi
35:21 split
20M
3:29:45
Rank: #21661 (+185)
30K → 20M
11:03/mi
15:01 split
21M
3:41:55
Rank: #21538 (+123)
20M → 21M
12:10/mi
12:10 split
35K· 21.75 mi
3:50:16
Rank: #21474 (+64)
21M → 35K
11:10/mi
8:21 split
23M
4:06:17
Rank: #21512 (-38)
35K → 23M
12:48/mi
16:01 split
24M
4:17:01
Rank: #21394 (+118)
23M → 24M
10:44/mi
10:44 split
40K· 24.85 mi
4:26:11
Rank: #21258 (+136)
24M → 40K
10:43/mi
9:10 split
25.2M
4:30:55
Rank: #21248 (+10)
40K → 25.2M
13:44/mi
4:44 split
Finish· 26.22 mi
4:41:19
Rank: #21168 (+80)
25.2M → Finish
10:12/mi
10:24 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:14:51
Pace10:17 /mi
2nd Half
Distance13.11 mi
Time2:26:28
Pace11:10 /mi
📊Positive Split: 8.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:57:3031:0710:0131:07
10:01
-
10K
6.21 mi12:29:311:03:0810:1032:01
10:18
+0:17
15K
9.32 mi13:00:061:33:4310:0330:35
9:51
-0:27
20K
12.43 mi13:34:482:08:2510:2034:42
11:10
+1:19
Half
13.11 mi13:41:142:14:5110:176:26
9:26
-1:44
25K
15.53 mi14:05:462:39:2310:1624:32
10:07
+0:41
30K
18.64 mi14:41:073:14:4410:2735:21
11:23
+1:16
20M
20.00 mi14:56:083:29:4510:2915:01
11:03
-0:20
21M
21.00 mi15:08:183:41:5510:3412:10
12:10
+1:07
35K
21.75 mi15:16:393:50:1610:358:21
11:10
-1:00
23M
23.00 mi15:32:404:06:1710:4216:01
12:48
+1:38
24M
24.00 mi15:43:244:17:0110:4310:44
10:44
-2:04
40K
24.85 mi15:52:344:26:1110:439:10
10:43
-0:01
25.2M
25.20 mi15:57:184:30:5510:454:44
13:44
+3:01
Finish
26.22 mi16:07:424:41:1910:4410:24
10:12
-3:32

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

9:26 /mi

Average Pace

10:44 /mi

Slowest Pace

13:44 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:32:40

33% of race

Time at Steady Pace

2:00:23

43% of race

Time at Slower Pace

1:08:16

24% of race

Average Pace: 10:44 /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 mi11:57:3031:0710:0131:07
10:01
#23027
10K
6.21 mi12:29:311:03:0810:1032:01
10:18
#23116
15K
9.32 mi13:00:061:33:4310:0330:35
9:51
#22604
20K
12.43 mi13:34:482:08:2510:2034:42
11:10
#22695
Half
13.11 mi13:41:142:14:5110:176:26
9:26
#22582
25K
15.53 mi14:05:462:39:2310:1624:32
10:07
#22120
30K
18.64 mi14:41:073:14:4410:2735:21
11:23
#21846
20M
20.00 mi14:56:083:29:4510:2915:01
11:03
#21661
21M
21.00 mi15:08:183:41:5510:3412:10
12:10
#21538
35K
21.75 mi15:16:393:50:1610:358:21
11:10
#21474
23M
23.00 mi15:32:404:06:1710:4216:01
12:48
#21512
24M
24.00 mi15:43:244:17:0110:4310:44
10:44
#21394
40K
24.85 mi15:52:344:26:1110:439:10
10:43
#21258
25.2M
25.20 mi15:57:184:30:5510:454:44
13:44
#21248
Finish
26.22 mi16:07:424:41:1910:4410:24
10:12
#21168
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi230279405940521543(Top 84%)8624(Top 79%)8624(Top 185%)
10K6.21 mi3.10 mi23116-899469-649469-6423195(Top 91%)9529(Top 87%)9529(Top 204%)
15K9.32 mi3.11 mi22604+5129191+2789191+27821543(Top 84%)8624(Top 79%)8624(Top 185%)
20K12.43 mi3.11 mi22695-919250-599250-5922909(Top 90%)9402(Top 86%)9402(Top 202%)
Half13.11 mi0.68 mi22582+1139204+469204+4619872(Top 78%)7818(Top 72%)7818(Top 168%)
25K15.53 mi2.42 mi22120+4628985+2198985+21919436(Top 76%)7612(Top 70%)7612(Top 163%)
30K18.64 mi3.11 mi21846+2748894+918894+9120780(Top 81%)8523(Top 78%)8523(Top 183%)
20M20.00 mi1.36 mi21661+1858823+718823+7119416(Top 76%)7927(Top 73%)7927(Top 170%)
21M21.00 mi1.00 mi21538+1238772+518772+5119200(Top 75%)7915(Top 72%)7915(Top 170%)
35K21.75 mi0.75 mi21474+648754+188754+1820154(Top 79%)8424(Top 77%)8424(Top 181%)
23M23.00 mi1.25 mi21512-388797-438797-4322206(Top 87%)9461(Top 87%)9461(Top 203%)
24M24.00 mi1.00 mi21394+1188756+418756+4118530(Top 73%)7726(Top 71%)7726(Top 166%)
40K24.85 mi0.85 mi21258+1368711+458711+4517368(Top 68%)7215(Top 66%)7215(Top 155%)
25.2M25.20 mi0.35 mi21248+108712-18712-121150(Top 83%)9059(Top 83%)9059(Top 194%)
Finish26.22 mi1.02 mi21168+808676+368676+3619122(Top 75%)8036(Top 74%)8036(Top 172%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 84%
×21story building
+97ft-345ft

Overall

21543

Females

8624

F18-39

8624

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

23195

Females

9529

F18-39

9529

10K→15K

6.2 - 9.3 mi

Top 84%
×3story building
+67ft-78ft

Overall

21543

Females

8624

F18-39

8624

15K→20K

9.3 - 12.4 mi

Top 90%
×5story building
+106ft-86ft

Overall

22909

Females

9402

F18-39

9402

20K→Half

12.4 - 13.1 mi

Top 78%
×2story building
+19ft-37ft

Overall

19872

Females

7818

F18-39

7818

Half→25K

13.1 - 15.5 mi

Top 76%
×4story building
+66ft-88ft

Overall

19436

Females

7612

F18-39

7612

25K→30K

15.5 - 18.6 mi

Top 81%
×9story building
+181ft-148ft

Overall

20780

Females

8523

F18-39

8523

30K→20M

18.6 - 20.0 mi

Top 76%
×5story building
+64ft-50ft

Overall

19416

Females

7927

F18-39

7927

20M→21M

20.0 - 21.0 mi

Top 75%
×8story building
+106ft-24ft

Overall

19200

Females

7915

F18-39

7915

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

20154

Females

8424

F18-39

8424

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

22206

Females

9461

F18-39

9461

23M→24M

23.0 - 24.0 mi

Top 73%
×6story building
+12ft-82ft

Overall

18530

Females

7726

F18-39

7726

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

17368

Females

7215

F18-39

7215

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

21150

Females

9059

F18-39

9059

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

19122

Females

8036

F18-39

8036

Passing Analysis

Category:
Athletes Passed
2580
Passed By
721
Net Change
+1859
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23027
5K → 10K163252-89#23027#23116
10K → 15K5175+512#23116#22604
15K → 20K138229-91#22604#22695
20K → Half1130+113#22695#22582
Half → 25K4642+462#22582#22120
25K → 30K32652+274#22120#21846
30K → 20M1927+185#21846#21661
20M → 21M14320+123#21661#21538
21M → 35K8016+64#21538#21474
35K → 23M5997-38#21474#21512
23M → 24M1257+118#21512#21394
24M → 40K1382+136#21394#21258
40K → 25.2M3020+10#21258#21248
25.2M → Finish9212+80#21248#21168
TOTALS2580721+1859
📊

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