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BOSTON MARATHON 2024

Hailey Kobza

Bib: 28431•F

CT

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
29:50
Rank: #22021
Start → 5K
9:36/mi
29:50 split
10K· 6.21 mi
59:43
Rank: #21846 (+175)
5K → 10K
9:37/mi
29:53 split
15K· 9.32 mi
1:29:28
Rank: #21496 (+350)
10K → 15K
9:35/mi
29:45 split
20K· 12.43 mi
2:01:21
Rank: #21366 (+130)
15K → 20K
10:16/mi
31:53 split
Half· 13.11 mi
2:08:27
Rank: #21433 (-67)
20K → Half
10:24/mi
7:06 split
25K· 15.53 mi
2:34:25
Rank: #21309 (+124)
Half → 25K
10:43/mi
25:58 split
30K· 18.64 mi
3:08:36
Rank: #21057 (+252)
25K → 30K
11:00/mi
34:11 split
20M
3:25:22
Rank: #21137 (-80)
30K → 20M
12:20/mi
16:46 split
21M
3:38:33
Rank: #21145 (-8)
20M → 21M
13:11/mi
13:11 split
35K· 21.75 mi
3:46:56
Rank: #21103 (+42)
21M → 35K
11:12/mi
8:23 split
23M
4:01:34
Rank: #21044 (+59)
35K → 23M
11:41/mi
14:38 split
24M
4:13:22
Rank: #21021 (+23)
23M → 24M
11:48/mi
11:48 split
40K· 24.85 mi
4:23:07
Rank: #20938 (+83)
24M → 40K
11:24/mi
9:45 split
25.2M
4:27:22
Rank: #20909 (+29)
40K → 25.2M
12:19/mi
4:15 split
Finish· 26.22 mi
4:37:56
Rank: #20857 (+52)
25.2M → Finish
10:22/mi
10:34 split

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:27
Pace9:48 /mi
2nd Half
Distance13.11 mi
Time2:29:29
Pace11:24 /mi
📊Positive Split: 16.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:5929:509:3629:50
9:36
-
10K
6.21 mi12:23:5259:439:3729:53
9:37
+0:01
15K
9.32 mi12:53:371:29:289:3629:45
9:35
-0:02
20K
12.43 mi13:25:302:01:219:4631:53
10:16
+0:41
Half
13.11 mi13:32:362:08:279:487:06
10:24
+0:08
25K
15.53 mi13:58:342:34:259:5625:58
10:43
+0:19
30K
18.64 mi14:32:453:08:3610:0734:11
11:00
+0:17
20M
20.00 mi14:49:313:25:2210:1616:46
12:20
+1:20
21M
21.00 mi15:02:423:38:3310:2413:11
13:11
+0:51
35K
21.75 mi15:11:053:46:5610:268:23
11:12
-1:59
23M
23.00 mi15:25:434:01:3410:3014:38
11:41
+0:29
24M
24.00 mi15:37:314:13:2210:3311:48
11:48
+0:07
40K
24.85 mi15:47:164:23:0710:359:45
11:24
-0:24
25.2M
25.20 mi15:51:314:27:2210:374:15
12:19
+0:55
Finish
26.22 mi16:02:054:37:5610:3610:34
10:22
-1:57

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

9:35 /mi

Average Pace

10:36 /mi

Slowest Pace

13:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:19:01

50% of race

Time at Steady Pace

1:18:17

28% of race

Time at Slower Pace

1:00:38

22% of race

Average Pace: 10:36 /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 mi11:53:5929:509:3629:50
9:36
#22021
10K
6.21 mi12:23:5259:439:3729:53
9:37
#21846
15K
9.32 mi12:53:371:29:289:3629:45
9:35
#21496
20K
12.43 mi13:25:302:01:219:4631:53
10:16
#21366
Half
13.11 mi13:32:362:08:279:487:06
10:24
#21433
25K
15.53 mi13:58:342:34:259:5625:58
10:43
#21309
30K
18.64 mi14:32:453:08:3610:0734:11
11:00
#21057
20M
20.00 mi14:49:313:25:2210:1616:46
12:20
#21137
21M
21.00 mi15:02:423:38:3310:2413:11
13:11
#21145
35K
21.75 mi15:11:053:46:5610:268:23
11:12
#21103
23M
23.00 mi15:25:434:01:3410:3014:38
11:41
#21044
24M
24.00 mi15:37:314:13:2210:3311:48
11:48
#21021
40K
24.85 mi15:47:164:23:0710:359:45
11:24
#20938
25.2M
25.20 mi15:51:314:27:2210:374:15
12:19
#20909
Finish
26.22 mi16:02:054:37:5610:3610:34
10:22
#20857
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi220218916891620893(Top 82%)8269(Top 76%)8269(Top 177%)
10K6.21 mi3.10 mi21846+1758831+858831+8521677(Top 85%)8750(Top 80%)8750(Top 188%)
15K9.32 mi3.11 mi21496+3508637+1948637+19420893(Top 82%)8269(Top 76%)8269(Top 177%)
20K12.43 mi3.11 mi21366+1308549+888549+8821153(Top 83%)8441(Top 77%)8441(Top 181%)
Half13.11 mi0.68 mi21433-678597-488597-4822456(Top 88%)9199(Top 84%)9199(Top 197%)
25K15.53 mi2.42 mi21309+1248539+588539+5820899(Top 82%)8415(Top 77%)8415(Top 181%)
30K18.64 mi3.11 mi21057+2528466+738466+7320005(Top 78%)8113(Top 74%)8113(Top 174%)
20M20.00 mi1.36 mi21137-808537-718537-7121918(Top 86%)9210(Top 84%)9210(Top 198%)
21M21.00 mi1.00 mi21145-88564-278564-2721070(Top 82%)8826(Top 81%)8826(Top 189%)
35K21.75 mi0.75 mi21103+428558+68558+620250(Top 79%)8478(Top 78%)8478(Top 182%)
23M23.00 mi1.25 mi21044+598550+88550+820105(Top 79%)8451(Top 77%)8451(Top 181%)
24M24.00 mi1.00 mi21021+238563-138563-1321023(Top 82%)8952(Top 82%)8952(Top 192%)
40K24.85 mi0.85 mi20938+838534+298534+2919114(Top 75%)8077(Top 74%)8077(Top 173%)
25.2M25.20 mi0.35 mi20909+298526+88526+818164(Top 71%)7615(Top 70%)7615(Top 163%)
Finish26.22 mi1.02 mi20857+528505+218505+2119640(Top 77%)8298(Top 76%)8298(Top 178%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 82%
×21story building
+97ft-345ft

Overall

20893

Females

8269

F18-39

8269

5K→10K

3.1 - 6.2 mi

Top 85%
×5story building
+79ft-138ft

Overall

21677

Females

8750

F18-39

8750

10K→15K

6.2 - 9.3 mi

Top 82%
×3story building
+67ft-78ft

Overall

20893

Females

8269

F18-39

8269

15K→20K

9.3 - 12.4 mi

Top 83%
×5story building
+106ft-86ft

Overall

21153

Females

8441

F18-39

8441

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

22456

Females

9199

F18-39

9199

Half→25K

13.1 - 15.5 mi

Top 82%
×4story building
+66ft-88ft

Overall

20899

Females

8415

F18-39

8415

25K→30K

15.5 - 18.6 mi

Top 78%
×9story building
+181ft-148ft

Overall

20005

Females

8113

F18-39

8113

30K→20M

18.6 - 20.0 mi

Top 86%
×5story building
+64ft-50ft

Overall

21918

Females

9210

F18-39

9210

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

21070

Females

8826

F18-39

8826

21M→35K

21.0 - 21.8 mi

Top 79%
×7story building
+17ft-86ft

Overall

20250

Females

8478

F18-39

8478

35K→23M

21.8 - 23.0 mi

Top 79%
×5story building
+23ft-63ft

Overall

20105

Females

8451

F18-39

8451

23M→24M

23.0 - 24.0 mi

Top 82%
×6story building
+12ft-82ft

Overall

21023

Females

8952

F18-39

8952

24M→40K

24.0 - 24.9 mi

Top 75%
×1story
+6ft-20ft

Overall

19114

Females

8077

F18-39

8077

40K→25.2M

24.9 - 25.2 mi

Top 71%
×1story
+13ft-16ft

Overall

18164

Females

7615

F18-39

7615

25.2M→Finish

25.2 - 26.2 mi

Top 77%
×2story building
+22ft-21ft

Overall

19640

Females

8298

F18-39

8298

Passing Analysis

Category:
Athletes Passed
2068
Passed By
904
Net Change
+1164
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22021
5K → 10K333158+175#22021#21846
10K → 15K39141+350#21846#21496
15K → 20K253123+130#21496#21366
20K → Half1784-67#21366#21433
Half → 25K20480+124#21433#21309
25K → 30K31361+252#21309#21057
30K → 20M50130-80#21057#21137
20M → 21M6775-8#21137#21145
21M → 35K6018+42#21145#21103
35K → 23M10445+59#21103#21044
23M → 24M6744+23#21044#21021
24M → 40K9815+83#21021#20938
40K → 25.2M334+29#20938#20909
25.2M → Finish7826+52#20909#20857
TOTALS2068904+1164
📊

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