Boston Marathon logo
BOSTON MARATHON 2024

Katie O'Connell

Bib: 12266•F

FL

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Top 45%
Gender (Female)
#0 / 10924
Top 31%
Division (F18-39)
#0 / 4660
Top 48%
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
7:43/mi
23:59
↑ 97↓ 3451.5%
10K· 6.21 mi
7:51/mi
48:23
↑ 79↓ 1380.4%
15K· 9.32 mi
7:52/mi
1:12:48
↑ 67↓ 78
20K· 12.43 mi
8:02/mi
1:37:46
↑ 106↓ 860.1%
Half· 13.11 mi
8:01/mi
1:43:14
↑ 19↓ 370.5%
25K· 15.53 mi
8:18/mi
2:03:21
↑ 66↓ 880.2%
30K· 18.64 mi
8:57/mi
2:31:10
↑ 181↓ 1480.2%
20M
8:54/mi
2:43:16
↑ 64↓ 500.2%
21M
9:25/mi
2:52:41
↑ 106↓ 241.6%
35K· 21.75 mi
8:35/mi
2:59:06
↑ 17↓ 861.7%
23M
8:45/mi
3:10:03
↑ 23↓ 630.6%
24M
8:44/mi
3:18:47
↓ 821.3%
40K· 24.85 mi
8:51/mi
3:26:21
↓ 200.3%
25.2M
9:28/mi
3:29:37
↑ 13↓ 160.2%
Finish· 26.22 mi
7:57/mi
3:37:43
↑ 22↓ 21

The Course

Is this your race?

Claim it — unlock a deeper AI report on this race, free

A personalized Race Performance Report that goes beyond this page — emailed to you, built from your real splits.

Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:14
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time1:54:29
Pace8:44 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:5823:597:4323:59
7:43
-
10K
6.21 mi11:17:2248:237:4724:24
7:51
+0:08
15K
9.32 mi11:41:471:12:487:4924:25
7:52
+0:01
20K
12.43 mi12:06:451:37:467:5224:58
8:02
+0:10
Half
13.11 mi12:12:131:43:147:525:28
8:01
-0:01
25K
15.53 mi12:32:202:03:217:5620:07
8:18
+0:17
30K
18.64 mi13:00:092:31:108:0727:49
8:57
+0:39
20M
20.00 mi13:12:152:43:168:1012:06
8:54
-0:03
21M
21.00 mi13:21:402:52:418:139:25
9:25
+0:31
35K
21.75 mi13:28:052:59:068:146:25
8:35
-0:50
23M
23.00 mi13:39:023:10:038:1610:57
8:45
+0:10
24M
24.00 mi13:47:463:18:478:178:44
8:44
-0:01
40K
24.85 mi13:55:203:26:218:187:34
8:51
+0:07
25.2M
25.20 mi13:58:363:29:378:193:16
9:28
+0:37
Finish
26.22 mi14:06:423:37:438:198:06
7:57
-1:31

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

7:43 /mi

Average Pace

8:19 /mi

Slowest Pace

9:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:11:27

60% of race

Time at Steady Pace

33:40

15% of race

Time at Slower Pace

52:36

24% of race

Average Pace: 8:18 /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 mi10:52:5823:597:4323:59
7:43
#12466
10K
6.21 mi11:17:2248:237:4724:24
7:51
#12771
15K
9.32 mi11:41:471:12:487:4924:25
7:52
#12616
20K
12.43 mi12:06:451:37:467:5224:58
8:02
#12400
Half
13.11 mi12:12:131:43:147:525:28
8:01
#12414
25K
15.53 mi12:32:202:03:217:5620:07
8:18
#12272
30K
18.64 mi13:00:092:31:108:0727:49
8:57
#12413
20M
20.00 mi13:12:152:43:168:1012:06
8:54
#12297
21M
21.00 mi13:21:402:52:418:139:25
9:25
#12133
35K
21.75 mi13:28:052:59:068:146:25
8:35
#12064
23M
23.00 mi13:39:023:10:038:1610:57
8:45
#11899
24M
24.00 mi13:47:463:18:478:178:44
8:44
#11802
40K
24.85 mi13:55:203:26:218:187:34
8:51
#11679
25.2M
25.20 mi13:58:363:29:378:193:16
9:28
#11597
Finish
26.22 mi14:06:423:37:438:198:06
7:57
#11411
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi124663390339012393(Top 49%)3453(Top 32%)3453(Top 74%)
10K6.21 mi3.10 mi12771-3053609-2193609-21913104(Top 51%)3824(Top 35%)3824(Top 82%)
15K9.32 mi3.11 mi12616+1553530+793530+7912393(Top 49%)3453(Top 32%)3453(Top 74%)
20K12.43 mi3.11 mi12400+2163429+1013429+10112104(Top 47%)3376(Top 31%)3376(Top 72%)
Half13.11 mi0.68 mi12414-143449-203449-2012884(Top 50%)3813(Top 35%)3813(Top 82%)
25K15.53 mi2.42 mi12272+1423414+353414+3511967(Top 47%)3498(Top 32%)3498(Top 75%)
30K18.64 mi3.11 mi12413-1413582-1683582-16813007(Top 51%)4276(Top 39%)4276(Top 92%)
20M20.00 mi1.36 mi12297+1163567+153567+1511642(Top 46%)3834(Top 35%)3834(Top 82%)
21M21.00 mi1.00 mi12133+1643545+223545+2210458(Top 41%)3462(Top 32%)3462(Top 74%)
35K21.75 mi0.75 mi12064+693538+73538+711188(Top 44%)3851(Top 35%)3851(Top 83%)
23M23.00 mi1.25 mi11899+1653516+223516+229829(Top 38%)3308(Top 30%)3308(Top 71%)
24M24.00 mi1.00 mi11802+973506+103506+1010779(Top 42%)3822(Top 35%)3822(Top 82%)
40K24.85 mi0.85 mi11679+1233492+143492+1410165(Top 40%)3639(Top 33%)3639(Top 78%)
25.2M25.20 mi0.35 mi11597+823469+233469+238685(Top 34%)3009(Top 28%)3009(Top 65%)
Finish26.22 mi1.02 mi11411+1863419+503419+508255(Top 32%)2711(Top 25%)2711(Top 58%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21story building
+97ft-345ft

Overall

12393

Females

3453

F18-39

3453

5K→10K

3.1 - 6.2 mi

Top 51%
×5story building
+79ft-138ft

Overall

13104

Females

3824

F18-39

3824

10K→15K

6.2 - 9.3 mi

Top 49%
×3story building
+67ft-78ft

Overall

12393

Females

3453

F18-39

3453

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

12104

Females

3376

F18-39

3376

20K→Half

12.4 - 13.1 mi

Top 50%
×2story building
+19ft-37ft

Overall

12884

Females

3813

F18-39

3813

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

11967

Females

3498

F18-39

3498

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

13007

Females

4276

F18-39

4276

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

11642

Females

3834

F18-39

3834

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

10458

Females

3462

F18-39

3462

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

11188

Females

3851

F18-39

3851

35K→23M

21.8 - 23.0 mi

Top 38%
×5story building
+23ft-63ft

Overall

9829

Females

3308

F18-39

3308

23M→24M

23.0 - 24.0 mi

Top 42%
×6story building
+12ft-82ft

Overall

10779

Females

3822

F18-39

3822

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

10165

Females

3639

F18-39

3639

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1story
+13ft-16ft

Overall

8685

Females

3009

F18-39

3009

25.2M→Finish

25.2 - 26.2 mi

Top 32%
×2story building
+22ft-21ft

Overall

8255

Females

2711

F18-39

2711

Passing Analysis

Category:
Athletes Passed
2721
Passed By
1666
Net Change
+1055
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12466
5K → 10K169474-305#12466#12771
10K → 15K304149+155#12771#12616
15K → 20K342126+216#12616#12400
20K → Half4357-14#12400#12414
Half → 25K300158+142#12414#12272
25K → 30K247388-141#12272#12413
30K → 20M19377+116#12413#12297
20M → 21M21551+164#12297#12133
21M → 35K10233+69#12133#12064
35K → 23M21651+165#12064#11899
23M → 24M13740+97#11899#11802
24M → 40K15431+123#11802#11679
40K → 25.2M9412+82#11679#11597
25.2M → Finish20519+186#11597#11411
TOTALS27211666+1055
📊

Passing Visuals

Category:
Loading...

🔄Passing Circle

Loading...

🌊Position Flow

Loading...

🏃Race Lanes

Loading...

Upload your GPX file

Supports Garmin, Apple Watch, Polar, Suunto, COROS, Strava, and other apps

.gpx files up to 10MB

Export Track Data

Download your race performance as a GPX or TCX file to import into Strava, Garmin Connect, or other fitness apps.

Questions or issues regarding timing data?

If you notice any discrepancies in your timing data or have questions about your results, our support team can help.

Contact Race Support

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing