Boston Marathon logo
BOSTON MARATHON 2024

Sarah Krizan

Bib: 15269•F

TN

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Top 35%
Gender (Female)
#0 / 10924
Top 20%
Division (F18-39)
#0 / 4660
Top 34%
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
7:42/mi
23:54
↑ 97↓ 3451.5%
10K· 6.21 mi
7:41/mi
47:46
↑ 79↓ 1380.4%
15K· 9.32 mi
7:39/mi
1:11:33
↑ 67↓ 78
20K· 12.43 mi
7:46/mi
1:35:42
↑ 106↓ 860.1%
Half· 13.11 mi
7:36/mi
1:40:53
↑ 19↓ 370.5%
25K· 15.53 mi
7:56/mi
2:00:07
↑ 66↓ 880.2%
30K· 18.64 mi
8:05/mi
2:25:14
↑ 181↓ 1480.2%
20M
8:39/mi
2:37:00
↑ 64↓ 500.2%
21M
8:39/mi
2:45:39
↑ 106↓ 241.6%
35K· 21.75 mi
7:46/mi
2:51:28
↑ 17↓ 861.7%
23M
8:16/mi
3:01:49
↑ 23↓ 630.6%
24M
8:02/mi
3:09:51
↓ 821.3%
40K· 24.85 mi
8:11/mi
3:16:51
↓ 200.3%
25.2M
9:11/mi
3:20:01
↑ 13↓ 160.2%
Finish· 26.22 mi
7:29/mi
3:27:39
↑ 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
Time1:40:53
Pace7:42 /mi
2nd Half
Distance13.11 mi
Time1:46:46
Pace8:09 /mi
📊Positive Split: 5.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:1823:547:4223:54
7:42
-
10K
6.21 mi11:21:1047:467:4123:52
7:41
-0:01
15K
9.32 mi11:44:571:11:337:4123:47
7:39
-0:02
20K
12.43 mi12:09:061:35:427:4224:09
7:46
+0:07
Half
13.11 mi12:14:171:40:537:425:11
7:36
-0:10
25K
15.53 mi12:33:312:00:077:4419:14
7:56
+0:20
30K
18.64 mi12:58:382:25:147:4725:07
8:05
+0:09
20M
20.00 mi13:10:242:37:007:5111:46
8:39
+0:34
21M
21.00 mi13:19:032:45:397:538:39
8:39
0:00
35K
21.75 mi13:24:522:51:287:535:49
7:46
-0:53
23M
23.00 mi13:35:133:01:497:5410:21
8:16
+0:30
24M
24.00 mi13:43:153:09:517:558:02
8:02
-0:14
40K
24.85 mi13:50:153:16:517:557:00
8:11
+0:09
25.2M
25.20 mi13:53:253:20:017:563:10
9:11
+1:00
Finish
26.22 mi14:01:033:27:397:567:38
7:29
-1:42

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

7:29 /mi

Average Pace

7:56 /mi

Slowest Pace

9:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:24:22

41% of race

Time at Steady Pace

1:22:21

40% of race

Time at Slower Pace

40:56

20% of race

Average Pace: 7:55 /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 mi10:57:1823:547:4223:54
7:42
#12265
10K
6.21 mi11:21:1047:467:4123:52
7:41
#11984
15K
9.32 mi11:44:571:11:337:4123:47
7:39
#11539
20K
12.43 mi12:09:061:35:427:4224:09
7:46
#11160
Half
13.11 mi12:14:171:40:537:425:11
7:36
#11087
25K
15.53 mi12:33:312:00:077:4419:14
7:56
#10782
30K
18.64 mi12:58:382:25:147:4725:07
8:05
#10175
20M
20.00 mi13:10:242:37:007:5111:46
8:39
#10138
21M
21.00 mi13:19:032:45:397:538:39
8:39
#9852
35K
21.75 mi13:24:522:51:287:535:49
7:46
#9695
23M
23.00 mi13:35:133:01:497:5410:21
8:16
#9445
24M
24.00 mi13:43:153:09:517:558:02
8:02
#9285
40K
24.85 mi13:50:153:16:517:557:00
8:11
#9137
25.2M
25.20 mi13:53:253:20:017:563:10
9:11
#9083
Finish
26.22 mi14:01:033:27:397:567:38
7:29
#8893
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi122653284328410866(Top 43%)2614(Top 24%)2614(Top 56%)
10K6.21 mi3.10 mi11984+2813161+1233161+12311735(Top 46%)3047(Top 28%)3047(Top 65%)
15K9.32 mi3.11 mi11539+4452940+2212940+22110866(Top 43%)2614(Top 24%)2614(Top 56%)
20K12.43 mi3.11 mi11160+3792751+1892751+18910242(Top 40%)2452(Top 22%)2452(Top 53%)
Half13.11 mi0.68 mi11087+732715+362715+369876(Top 39%)2233(Top 20%)2233(Top 48%)
25K15.53 mi2.42 mi10782+3052618+972618+979765(Top 38%)2366(Top 22%)2366(Top 51%)
30K18.64 mi3.11 mi10175+6072409+2092409+2098375(Top 33%)1927(Top 18%)1927(Top 41%)
20M20.00 mi1.36 mi10138+372451-422451-4210287(Top 40%)3098(Top 28%)3098(Top 66%)
21M21.00 mi1.00 mi9852+2862350+1012350+1016951(Top 27%)1706(Top 16%)1706(Top 37%)
35K21.75 mi0.75 mi9695+1572314+362314+366510(Top 25%)1533(Top 14%)1533(Top 33%)
23M23.00 mi1.25 mi9445+2502258+562258+567166(Top 28%)1981(Top 18%)1981(Top 43%)
24M24.00 mi1.00 mi9285+1602219+392219+396838(Top 27%)1926(Top 18%)1926(Top 41%)
40K24.85 mi0.85 mi9137+1482193+262193+266735(Top 26%)1991(Top 18%)1991(Top 43%)
25.2M25.20 mi0.35 mi9083+542192+12192+17438(Top 29%)2387(Top 22%)2387(Top 51%)
Finish26.22 mi1.02 mi8893+1902136+562136+565611(Top 22%)1464(Top 13%)1464(Top 31%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21story building
+97ft-345ft

Overall

10866

Females

2614

F18-39

2614

5K→10K

3.1 - 6.2 mi

Top 46%
×5story building
+79ft-138ft

Overall

11735

Females

3047

F18-39

3047

10K→15K

6.2 - 9.3 mi

Top 43%
×3story building
+67ft-78ft

Overall

10866

Females

2614

F18-39

2614

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

10242

Females

2452

F18-39

2452

20K→Half

12.4 - 13.1 mi

Top 39%
×2story building
+19ft-37ft

Overall

9876

Females

2233

F18-39

2233

Half→25K

13.1 - 15.5 mi

Top 38%
×4story building
+66ft-88ft

Overall

9765

Females

2366

F18-39

2366

25K→30K

15.5 - 18.6 mi

Top 33%
×9story building
+181ft-148ft

Overall

8375

Females

1927

F18-39

1927

30K→20M

18.6 - 20.0 mi

Top 40%
×5story building
+64ft-50ft

Overall

10287

Females

3098

F18-39

3098

20M→21M

20.0 - 21.0 mi

Top 27%
×8story building
+106ft-24ft

Overall

6951

Females

1706

F18-39

1706

21M→35K

21.0 - 21.8 mi

Top 25%
×7story building
+17ft-86ft

Overall

6510

Females

1533

F18-39

1533

35K→23M

21.8 - 23.0 mi

Top 28%
×5story building
+23ft-63ft

Overall

7166

Females

1981

F18-39

1981

23M→24M

23.0 - 24.0 mi

Top 27%
×6story building
+12ft-82ft

Overall

6838

Females

1926

F18-39

1926

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

6735

Females

1991

F18-39

1991

40K→25.2M

24.9 - 25.2 mi

Top 29%
×1story
+13ft-16ft

Overall

7438

Females

2387

F18-39

2387

25.2M→Finish

25.2 - 26.2 mi

Top 22%
×2story building
+22ft-21ft

Overall

5611

Females

1464

F18-39

1464

Passing Analysis

Category:
Athletes Passed
3998*
Passed By
625
Net Change
+3372
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12265
5K → 10K444163+281#12265#11984
10K → 15K49853+445#11984#11539
15K → 20K42849+379#11539#11160
20K → Half807+73#11160#11087
Half → 25K37974+305#11087#10782
25K → 30K64134+607#10782#10175
30K → 20M157119+37#10175#10138
20M → 21M30317+286#10138#9852
21M → 35K17013+157#9852#9695
35K → 23M28939+250#9695#9445
23M → 24M177*17+160#9445#9285
24M → 40K16315+148#9285#9137
40K → 25.2M6915+54#9137#9083
25.2M → Finish20010+190#9083#8893
TOTALS3998*625+3372

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

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