Boston Marathon logo
BOSTON MARATHON 2024

Sally Zhao

Bib: 15441•F

CA

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Top 48%
Gender (Female)
#0 / 10924
Top 35%
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
7:53/mi
24:28
↑ 97↓ 3451.5%
10K· 6.21 mi
7:54/mi
49:00
↑ 79↓ 1380.4%
15K· 9.32 mi
7:56/mi
1:13:38
↑ 67↓ 78
20K· 12.43 mi
8:05/mi
1:38:46
↑ 106↓ 860.1%
Half· 13.11 mi
7:58/mi
1:44:12
↑ 19↓ 370.5%
25K· 15.53 mi
8:17/mi
2:04:17
↑ 66↓ 880.2%
30K· 18.64 mi
8:58/mi
2:32:07
↑ 181↓ 1480.2%
20M
9:13/mi
2:44:38
↑ 64↓ 500.2%
21M
10:03/mi
2:54:41
↑ 106↓ 241.6%
35K· 21.75 mi
8:43/mi
3:01:12
↑ 17↓ 861.7%
23M
9:00/mi
3:12:28
↑ 23↓ 630.6%
24M
8:58/mi
3:21:26
↓ 821.3%
40K· 24.85 mi
8:56/mi
3:29:04
↓ 200.3%
25.2M
10:00/mi
3:32:31
↑ 13↓ 160.2%
Finish· 26.22 mi
8:23/mi
3:41:04
↑ 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
Time1:44:12
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:56:52
Pace8:55 /mi
📊Positive Split: 12.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:58:2424:287:5324:28
7:53
-
10K
6.21 mi11:22:5649:007:5324:32
7:54
+0:01
15K
9.32 mi11:47:341:13:387:5424:38
7:56
+0:02
20K
12.43 mi12:12:421:38:467:5725:08
8:05
+0:09
Half
13.11 mi12:18:081:44:127:575:26
7:58
-0:07
25K
15.53 mi12:38:132:04:178:0020:05
8:17
+0:19
30K
18.64 mi13:06:032:32:078:1027:50
8:58
+0:41
20M
20.00 mi13:18:342:44:388:1412:31
9:13
+0:15
21M
21.00 mi13:28:372:54:418:1910:03
10:03
+0:50
35K
21.75 mi13:35:083:01:128:206:31
8:43
-1:20
23M
23.00 mi13:46:243:12:288:2211:16
9:00
+0:17
24M
24.00 mi13:55:223:21:268:248:58
8:58
-0:02
40K
24.85 mi14:03:003:29:048:257:38
8:56
-0:02
25.2M
25.20 mi14:06:273:32:318:263:27
10:00
+1:04
Finish
26.22 mi14:15:003:41:048:268:33
8:23
-1:37

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

7:53 /mi

Average Pace

8:26 /mi

Slowest Pace

10:03 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:04:17

56% of race

Time at Steady Pace

1:10:46

32% of race

Time at Slower Pace

26:01

12% of race

Average Pace: 8:26 /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 mi10:58:2424:287:5324:28
7:53
#13693
10K
6.21 mi11:22:5649:007:5324:32
7:54
#13526
15K
9.32 mi11:47:341:13:387:5424:38
7:56
#13308
20K
12.43 mi12:12:421:38:467:5725:08
8:05
#12994
Half
13.11 mi12:18:081:44:127:575:26
7:58
#12949
25K
15.53 mi12:38:132:04:178:0020:05
8:17
#12729
30K
18.64 mi13:06:032:32:078:1027:50
8:58
#12721
20M
20.00 mi13:18:342:44:388:1412:31
9:13
#12707
21M
21.00 mi13:28:372:54:418:1910:03
10:03
#12717
35K
21.75 mi13:35:083:01:128:206:31
8:43
#12654
23M
23.00 mi13:46:243:12:288:2211:16
9:00
#12517
24M
24.00 mi13:55:223:21:268:248:58
8:58
#12452
40K
24.85 mi14:03:003:29:048:257:38
8:56
#12336
25.2M
25.20 mi14:06:273:32:318:263:27
10:00
#12296
Finish
26.22 mi14:15:003:41:048:268:33
8:23
#12228
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi136934112411212921(Top 51%)3764(Top 34%)3764(Top 81%)
10K6.21 mi3.10 mi13526+1674048+644048+6413420(Top 53%)4003(Top 37%)4003(Top 86%)
15K9.32 mi3.11 mi13308+2183930+1183930+11812921(Top 51%)3764(Top 34%)3764(Top 81%)
20K12.43 mi3.11 mi12994+3143770+1603770+16012470(Top 49%)3566(Top 33%)3566(Top 77%)
Half13.11 mi0.68 mi12949+453757+133757+1312558(Top 49%)3635(Top 33%)3635(Top 78%)
25K15.53 mi2.42 mi12729+2203664+933664+9311897(Top 47%)3460(Top 32%)3460(Top 74%)
30K18.64 mi3.11 mi12721+83747-833747-8313030(Top 51%)4290(Top 39%)4290(Top 92%)
20M20.00 mi1.36 mi12707+143803-563803-5613200(Top 52%)4678(Top 43%)4678(Top 100%)
21M21.00 mi1.00 mi12717-103869-663869-6613176(Top 52%)4874(Top 45%)4874(Top 105%)
35K21.75 mi0.75 mi12654+633867+23867+211883(Top 47%)4227(Top 39%)4227(Top 91%)
23M23.00 mi1.25 mi12517+1373850+173850+1711174(Top 44%)3986(Top 36%)3986(Top 86%)
24M24.00 mi1.00 mi12452+653868-183868-1811987(Top 47%)4395(Top 40%)4395(Top 94%)
40K24.85 mi0.85 mi12336+1163858+103858+1010548(Top 41%)3839(Top 35%)3839(Top 82%)
25.2M25.20 mi0.35 mi12296+403852+63852+610999(Top 43%)4097(Top 38%)4097(Top 88%)
Finish26.22 mi1.02 mi12228+683844+83844+810920(Top 43%)3941(Top 36%)3941(Top 85%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

12921

Females

3764

F18-39

3764

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

13420

Females

4003

F18-39

4003

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

12921

Females

3764

F18-39

3764

15K→20K

9.3 - 12.4 mi

Top 49%
×5story building
+106ft-86ft

Overall

12470

Females

3566

F18-39

3566

20K→Half

12.4 - 13.1 mi

Top 49%
×2story building
+19ft-37ft

Overall

12558

Females

3635

F18-39

3635

Half→25K

13.1 - 15.5 mi

Top 47%
×4story building
+66ft-88ft

Overall

11897

Females

3460

F18-39

3460

25K→30K

15.5 - 18.6 mi

Top 51%
×9story building
+181ft-148ft

Overall

13030

Females

4290

F18-39

4290

30K→20M

18.6 - 20.0 mi

Top 52%
×5story building
+64ft-50ft

Overall

13200

Females

4678

F18-39

4678

20M→21M

20.0 - 21.0 mi

Top 52%
×8story building
+106ft-24ft

Overall

13176

Females

4874

F18-39

4874

21M→35K

21.0 - 21.8 mi

Top 47%
×7story building
+17ft-86ft

Overall

11883

Females

4227

F18-39

4227

35K→23M

21.8 - 23.0 mi

Top 44%
×5story building
+23ft-63ft

Overall

11174

Females

3986

F18-39

3986

23M→24M

23.0 - 24.0 mi

Top 47%
×6story building
+12ft-82ft

Overall

11987

Females

4395

F18-39

4395

24M→40K

24.0 - 24.9 mi

Top 41%
×1story
+6ft-20ft

Overall

10548

Females

3839

F18-39

3839

40K→25.2M

24.9 - 25.2 mi

Top 43%
×1story
+13ft-16ft

Overall

10999

Females

4097

F18-39

4097

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

10920

Females

3941

F18-39

3941

Passing Analysis

Category:
Athletes Passed
2846
Passed By
1381
Net Change
+1465
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13693
5K → 10K396229+167#13693#13526
10K → 15K332114+218#13526#13308
15K → 20K427113+314#13308#12994
20K → Half6419+45#12994#12949
Half → 25K347127+220#12949#12729
25K → 30K292284+8#12729#12721
30K → 20M139125+14#12721#12707
20M → 21M127137-10#12707#12717
21M → 35K10239+63#12717#12654
35K → 23M19356+137#12654#12517
23M → 24M12560+65#12517#12452
24M → 40K14832+116#12452#12336
40K → 25.2M5414+40#12336#12296
25.2M → Finish10032+68#12296#12228
TOTALS28461381+1465
📊

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
Share Feedback

Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing