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BOSTON MARATHON 2024

Katie O'Brien

Bib: 25856•F

AZ

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

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
10:38/mi
33:02
↑ 97↓ 3451.5%
10K· 6.21 mi
10:54/mi
1:06:54
↑ 79↓ 1380.4%
15K· 9.32 mi
10:31/mi
1:39:33
↑ 67↓ 78
20K· 12.43 mi
10:59/mi
2:13:39
↑ 106↓ 860.1%
Half· 13.11 mi
10:26/mi
2:20:46
↑ 19↓ 370.5%
25K· 15.53 mi
11:11/mi
2:47:53
↑ 66↓ 880.2%
30K· 18.64 mi
11:38/mi
3:24:03
↑ 181↓ 1480.2%
20M
11:16/mi
3:39:21
↑ 64↓ 500.2%
21M
12:22/mi
3:51:43
↑ 106↓ 241.6%
35K· 21.75 mi
12:25/mi
4:01:00
↑ 17↓ 861.7%
23M
12:09/mi
4:16:13
↑ 23↓ 630.6%
24M
12:26/mi
4:28:39
↓ 821.3%
40K· 24.85 mi
12:34/mi
4:39:24
↓ 200.3%
25.2M
14:53/mi
4:44:32
↑ 13↓ 160.2%
Finish· 26.22 mi
11:57/mi
4:56:43
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:20:46
Pace10:44 /mi
2nd Half
Distance13.11 mi
Time2:35:57
Pace11:54 /mi
📊Positive Split: 10.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:49:2233:0210:3833:02
10:38
-
10K
6.21 mi12:23:141:06:5410:4633:52
10:54
+0:16
15K
9.32 mi12:55:531:39:3310:4132:39
10:31
-0:23
20K
12.43 mi13:29:592:13:3910:4534:06
10:59
+0:28
Half
13.11 mi13:37:062:20:4610:447:07
10:26
-0:33
25K
15.53 mi14:04:132:47:5310:4827:07
11:11
+0:45
30K
18.64 mi14:40:233:24:0310:5736:10
11:38
+0:27
20M
20.00 mi14:55:413:39:2110:5815:18
11:16
-0:22
21M
21.00 mi15:08:033:51:4311:0212:22
12:22
+1:06
35K
21.75 mi15:17:204:01:0011:059:17
12:25
+0:03
23M
23.00 mi15:32:334:16:1311:0815:13
12:09
-0:16
24M
24.00 mi15:44:594:28:3911:1212:26
12:26
+0:17
40K
24.85 mi15:55:444:39:2411:1410:45
12:34
+0:08
25.2M
25.20 mi16:00:524:44:3211:175:08
14:53
+2:19
Finish
26.22 mi16:13:034:56:4311:2012:11
11:57
-2:56

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

10:26 /mi

Average Pace

11:20 /mi

Slowest Pace

14:53 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:20:46

47% of race

Time at Steady Pace

1:45:59

36% of race

Time at Slower Pace

49:58

17% of race

Average Pace: 11:19 /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 mi11:49:2233:0210:3833:02
10:38
#24330
10K
6.21 mi12:23:141:06:5410:4633:52
10:54
#24258
15K
9.32 mi12:55:531:39:3310:4132:39
10:31
#23803
20K
12.43 mi13:29:592:13:3910:4534:06
10:59
#23537
Half
13.11 mi13:37:062:20:4610:447:07
10:26
#23479
25K
15.53 mi14:04:132:47:5310:4827:07
11:11
#23207
30K
18.64 mi14:40:233:24:0310:5736:10
11:38
#22869
20M
20.00 mi14:55:413:39:2110:5815:18
11:16
#22665
21M
21.00 mi15:08:033:51:4311:0212:22
12:22
#22514
35K
21.75 mi15:17:204:01:0011:059:17
12:25
#22518
23M
23.00 mi15:32:334:16:1311:0815:13
12:09
#22458
24M
24.00 mi15:44:594:28:3911:1212:26
12:26
#22440
40K
24.85 mi15:55:444:39:2411:1410:45
12:34
#22428
25.2M
25.20 mi16:00:524:44:3211:175:08
14:53
#22448
Finish
26.22 mi16:13:034:56:4311:2012:11
11:57
#22515
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi24330101451014522952(Top 90%)9402(Top 86%)9402(Top 202%)
10K6.21 mi3.10 mi24258+7210101+4410101+4424152(Top 95%)10061(Top 92%)10061(Top 216%)
15K9.32 mi3.11 mi23803+4559849+2529849+25222952(Top 90%)9402(Top 86%)9402(Top 202%)
20K12.43 mi3.11 mi23537+2669719+1309719+13022591(Top 88%)9233(Top 85%)9233(Top 198%)
Half13.11 mi0.68 mi23479+589694+259694+2522521(Top 88%)9238(Top 85%)9238(Top 198%)
25K15.53 mi2.42 mi23207+2729570+1249570+12421848(Top 86%)8910(Top 82%)8910(Top 191%)
30K18.64 mi3.11 mi22869+3389424+1469424+14621300(Top 83%)8796(Top 81%)8796(Top 189%)
20M20.00 mi1.36 mi22665+2049334+909334+9019902(Top 78%)8176(Top 75%)8176(Top 175%)
21M21.00 mi1.00 mi22514+1519264+709264+7019610(Top 77%)8131(Top 74%)8131(Top 174%)
35K21.75 mi0.75 mi22518-49284-209284-2022453(Top 88%)9566(Top 88%)9566(Top 205%)
23M23.00 mi1.25 mi22458+609272+129272+1221080(Top 83%)8926(Top 82%)8926(Top 192%)
24M24.00 mi1.00 mi22440+189280-89280-822207(Top 87%)9536(Top 87%)9536(Top 205%)
40K24.85 mi0.85 mi22428+129297-179297-1721551(Top 84%)9257(Top 85%)9257(Top 199%)
25.2M25.20 mi0.35 mi22448-209313-169313-1622902(Top 90%)9884(Top 90%)9884(Top 212%)
Finish26.22 mi1.02 mi22515-679355-429355-4223172(Top 91%)10024(Top 92%)10024(Top 215%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 90%
×21story building
+97ft-345ft

Overall

22952

Females

9402

F18-39

9402

5K→10K

3.1 - 6.2 mi

Top 95%
×5story building
+79ft-138ft

Overall

24152

Females

10061

F18-39

10061

10K→15K

6.2 - 9.3 mi

Top 90%
×3story building
+67ft-78ft

Overall

22952

Females

9402

F18-39

9402

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

22591

Females

9233

F18-39

9233

20K→Half

12.4 - 13.1 mi

Top 88%
×2story building
+19ft-37ft

Overall

22521

Females

9238

F18-39

9238

Half→25K

13.1 - 15.5 mi

Top 86%
×4story building
+66ft-88ft

Overall

21848

Females

8910

F18-39

8910

25K→30K

15.5 - 18.6 mi

Top 83%
×9story building
+181ft-148ft

Overall

21300

Females

8796

F18-39

8796

30K→20M

18.6 - 20.0 mi

Top 78%
×5story building
+64ft-50ft

Overall

19902

Females

8176

F18-39

8176

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

19610

Females

8131

F18-39

8131

21M→35K

21.0 - 21.8 mi

Top 88%
×7story building
+17ft-86ft

Overall

22453

Females

9566

F18-39

9566

35K→23M

21.8 - 23.0 mi

Top 83%
×5story building
+23ft-63ft

Overall

21080

Females

8926

F18-39

8926

23M→24M

23.0 - 24.0 mi

Top 87%
×6story building
+12ft-82ft

Overall

22207

Females

9536

F18-39

9536

24M→40K

24.0 - 24.9 mi

Top 84%
×1story
+6ft-20ft

Overall

21551

Females

9257

F18-39

9257

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

22902

Females

9884

F18-39

9884

25.2M→Finish

25.2 - 26.2 mi

Top 91%
×2story building
+22ft-21ft

Overall

23172

Females

10024

F18-39

10024

Passing Analysis

Category:
Athletes Passed
2309
Passed By
494
Net Change
+1815
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24330
5K → 10K199127+72#24330#24258
10K → 15K4583+455#24258#23803
15K → 20K29630+266#23803#23537
20K → Half591+58#23537#23479
Half → 25K28412+272#23479#23207
25K → 30K36527+338#23207#22869
30K → 20M2106+204#22869#22665
20M → 21M1609+151#22665#22514
21M → 35K4650-4#22514#22518
35K → 23M8020+60#22518#22458
23M → 24M5032+18#22458#22440
24M → 40K6351+12#22440#22428
40K → 25.2M1232-20#22428#22448
25.2M → Finish2794-67#22448#22515
TOTALS2309494+1815
📊

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