Boston Marathon logo
BOSTON MARATHON 2024

Sara Kato

Bib: 11195•F

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Top 33%
Gender (Female)
#0 / 10924
Top 18%
Division (F18-39)
#0 / 4660
Top 31%
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
7:13/mi
22:24
↑ 97↓ 3451.5%
10K· 6.21 mi
7:23/mi
45:21
↑ 79↓ 1380.4%
15K· 9.32 mi
7:35/mi
1:08:55
↑ 67↓ 78
20K· 12.43 mi
7:47/mi
1:33:06
↑ 106↓ 860.1%
Half· 13.11 mi
7:40/mi
1:38:20
↑ 19↓ 370.5%
25K· 15.53 mi
7:52/mi
1:57:25
↑ 66↓ 880.2%
30K· 18.64 mi
8:19/mi
2:23:14
↑ 181↓ 1480.2%
20M
7:59/mi
2:34:05
↑ 64↓ 500.2%
21M
8:42/mi
2:42:47
↑ 106↓ 241.6%
35K· 21.75 mi
8:28/mi
2:49:07
↑ 17↓ 861.7%
23M
8:46/mi
3:00:06
↑ 23↓ 630.6%
24M
8:32/mi
3:08:38
↓ 821.3%
40K· 24.85 mi
8:21/mi
3:15:46
↓ 200.3%
25.2M
8:48/mi
3:18:48
↑ 13↓ 160.2%
Finish· 26.22 mi
7:15/mi
3:26:11
↑ 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
Time1:38:20
Pace7:30 /mi
2nd Half
Distance13.11 mi
Time1:47:51
Pace8:14 /mi
📊Positive Split: 9.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:4322:247:1322:24
7:13
-
10K
6.21 mi11:12:4045:217:1822:57
7:23
+0:10
15K
9.32 mi11:36:141:08:557:2423:34
7:35
+0:12
20K
12.43 mi12:00:251:33:067:2924:11
7:47
+0:12
Half
13.11 mi12:05:391:38:207:305:14
7:40
-0:07
25K
15.53 mi12:24:441:57:257:3419:05
7:52
+0:12
30K
18.64 mi12:50:332:23:147:4125:49
8:19
+0:27
20M
20.00 mi13:01:242:34:057:4210:51
7:59
-0:20
21M
21.00 mi13:10:062:42:477:458:42
8:42
+0:43
35K
21.75 mi13:16:262:49:077:476:20
8:28
-0:14
23M
23.00 mi13:27:253:00:067:5010:59
8:46
+0:18
24M
24.00 mi13:35:573:08:387:528:32
8:32
-0:14
40K
24.85 mi13:43:053:15:467:537:08
8:21
-0:11
25.2M
25.20 mi13:46:073:18:487:533:02
8:48
+0:27
Finish
26.22 mi13:53:303:26:117:527:23
7:15
-1:33

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

7:13 /mi

Average Pace

7:52 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:21:32

40% of race

Time at Steady Pace

54:07

26% of race

Time at Slower Pace

1:10:32

34% of race

Average Pace: 7:52 /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 mi10:49:4322:247:1322:24
7:13
#8517
10K
6.21 mi11:12:4045:217:1822:57
7:23
#8903
15K
9.32 mi11:36:141:08:557:2423:34
7:35
#9301
20K
12.43 mi12:00:251:33:067:2924:11
7:47
#9570
Half
13.11 mi12:05:391:38:207:305:14
7:40
#9597
25K
15.53 mi12:24:441:57:257:3419:05
7:52
#9499
30K
18.64 mi12:50:332:23:147:4125:49
8:19
#9428
20M
20.00 mi13:01:242:34:057:4210:51
7:59
#9121
21M
21.00 mi13:10:062:42:477:458:42
8:42
#8894
35K
21.75 mi13:16:262:49:077:476:20
8:28
#8915
23M
23.00 mi13:27:253:00:067:5010:59
8:46
#8897
24M
24.00 mi13:35:573:08:387:528:32
8:32
#8920
40K
24.85 mi13:43:053:15:467:537:08
8:21
#8806
25.2M
25.20 mi13:46:073:18:487:533:02
8:48
#8711
Finish
26.22 mi13:53:303:26:117:527:23
7:15
#8453
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi85171388138810333(Top 40%)2346(Top 21%)2346(Top 50%)
10K6.21 mi3.10 mi8903-3861575-1871575-1879349(Top 37%)1813(Top 17%)1813(Top 39%)
15K9.32 mi3.11 mi9301-3981759-1841759-18410333(Top 40%)2346(Top 21%)2346(Top 50%)
20K12.43 mi3.11 mi9570-2691933-1741933-17410322(Top 40%)2492(Top 23%)2492(Top 53%)
Half13.11 mi0.68 mi9597-271951-181951-1810399(Top 41%)2489(Top 23%)2489(Top 53%)
25K15.53 mi2.42 mi9499+981954-31954-39382(Top 37%)2183(Top 20%)2183(Top 47%)
30K18.64 mi3.11 mi9428+712026-722026-729632(Top 38%)2519(Top 23%)2519(Top 54%)
20M20.00 mi1.36 mi9121+3071933+931933+936700(Top 26%)1423(Top 13%)1423(Top 31%)
21M21.00 mi1.00 mi8894+2271892+411892+417162(Top 28%)1789(Top 16%)1789(Top 38%)
35K21.75 mi0.75 mi8915-211929-371929-3710538(Top 41%)3498(Top 32%)3498(Top 75%)
23M23.00 mi1.25 mi8897+181990-611990-619950(Top 39%)3365(Top 31%)3365(Top 72%)
24M24.00 mi1.00 mi8920-232039-492039-499665(Top 38%)3257(Top 30%)3257(Top 70%)
40K24.85 mi0.85 mi8806+1142032+72032+77581(Top 30%)2410(Top 22%)2410(Top 52%)
25.2M25.20 mi0.35 mi8711+952016+162016+165712(Top 22%)1583(Top 14%)1583(Top 34%)
Finish26.22 mi1.02 mi8453+2581937+791937+794263(Top 17%)895(Top 8%)895(Top 19%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 40%
×21story building
+97ft-345ft

Overall

10333

Females

2346

F18-39

2346

5K→10K

3.1 - 6.2 mi

Top 37%
×5story building
+79ft-138ft

Overall

9349

Females

1813

F18-39

1813

10K→15K

6.2 - 9.3 mi

Top 40%
×3story building
+67ft-78ft

Overall

10333

Females

2346

F18-39

2346

15K→20K

9.3 - 12.4 mi

Top 40%
×5story building
+106ft-86ft

Overall

10322

Females

2492

F18-39

2492

20K→Half

12.4 - 13.1 mi

Top 41%
×2story building
+19ft-37ft

Overall

10399

Females

2489

F18-39

2489

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

9382

Females

2183

F18-39

2183

25K→30K

15.5 - 18.6 mi

Top 38%
×9story building
+181ft-148ft

Overall

9632

Females

2519

F18-39

2519

30K→20M

18.6 - 20.0 mi

Top 26%
×5story building
+64ft-50ft

Overall

6700

Females

1423

F18-39

1423

20M→21M

20.0 - 21.0 mi

Top 28%
×8story building
+106ft-24ft

Overall

7162

Females

1789

F18-39

1789

21M→35K

21.0 - 21.8 mi

Top 41%
×7story building
+17ft-86ft

Overall

10538

Females

3498

F18-39

3498

35K→23M

21.8 - 23.0 mi

Top 39%
×5story building
+23ft-63ft

Overall

9950

Females

3365

F18-39

3365

23M→24M

23.0 - 24.0 mi

Top 38%
×6story building
+12ft-82ft

Overall

9665

Females

3257

F18-39

3257

24M→40K

24.0 - 24.9 mi

Top 30%
×1story
+6ft-20ft

Overall

7581

Females

2410

F18-39

2410

40K→25.2M

24.9 - 25.2 mi

Top 22%
×1story
+13ft-16ft

Overall

5712

Females

1583

F18-39

1583

25.2M→Finish

25.2 - 26.2 mi

Top 17%
×2story building
+22ft-21ft

Overall

4263

Females

895

F18-39

895

Passing Analysis

Category:
Athletes Passed
2290
Passed By
2225
Net Change
+64
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8517
5K → 10K110496-386#8517#8903
10K → 15K84482-398#8903#9301
15K → 20K142411-269#9301#9570
20K → Half2855-27#9570#9597
Half → 25K254155+98#9597#9499
25K → 30K292221+71#9499#9428
30K → 20M31811+307#9428#9121
20M → 21M26336+227#9121#8894
21M → 35K6687-21#8894#8915
35K → 23M149131+18#8915#8897
23M → 24M7396-23#8897#8920
24M → 40K14834+114#8920#8806
40K → 25.2M1049+95#8806#8711
25.2M → Finish2591+258#8711#8453
TOTALS22902225+64
📊

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