Boston Marathon logo
BOSTON MARATHON 2024

Tiffany Seppala

Bib: 10660•F

NH

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 43%
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
7:32/mi
23:23
↑ 97↓ 3451.5%
10K· 6.21 mi
7:44/mi
47:24
↑ 79↓ 1380.4%
15K· 9.32 mi
7:57/mi
1:12:05
↑ 67↓ 78
20K· 12.43 mi
8:04/mi
1:37:10
↑ 106↓ 860.1%
Half· 13.11 mi
8:05/mi
1:42:41
↑ 19↓ 370.5%
25K· 15.53 mi
8:12/mi
2:02:35
↑ 66↓ 880.2%
30K· 18.64 mi
9:45/mi
2:32:52
↑ 181↓ 1480.2%
20M
11:28/mi
2:48:27
↑ 64↓ 500.2%
21M
10:34/mi
2:59:01
↑ 106↓ 241.6%
35K· 21.75 mi
8:35/mi
3:05:26
↑ 17↓ 861.7%
23M
9:08/mi
3:16:52
↑ 23↓ 630.6%
24M
9:39/mi
3:26:31
↓ 821.3%
40K· 24.85 mi
9:20/mi
3:34:30
↓ 200.3%
25.2M
11:24/mi
3:38:26
↑ 13↓ 160.2%
Finish· 26.22 mi
8:52/mi
3:47:28
↑ 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
Time1:42:41
Pace7:50 /mi
2nd Half
Distance13.11 mi
Time2:04:47
Pace9:31 /mi
📊Positive Split: 21.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:49:5123:237:3223:23
7:32
-
10K
6.21 mi11:13:5247:247:3824:01
7:44
+0:12
15K
9.32 mi11:38:331:12:057:4424:41
7:57
+0:13
20K
12.43 mi12:03:381:37:107:4925:05
8:04
+0:07
Half
13.11 mi12:09:091:42:417:505:31
8:05
+0:01
25K
15.53 mi12:29:032:02:357:5319:54
8:12
+0:07
30K
18.64 mi12:59:202:32:528:1230:17
9:45
+1:33
20M
20.00 mi13:14:552:48:278:2515:35
11:28
+1:43
21M
21.00 mi13:25:292:59:018:3110:34
10:34
-0:54
35K
21.75 mi13:31:543:05:268:326:25
8:35
-1:59
23M
23.00 mi13:43:203:16:528:3411:26
9:08
+0:33
24M
24.00 mi13:52:593:26:318:369:39
9:39
+0:31
40K
24.85 mi14:00:583:34:308:387:59
9:20
-0:19
25.2M
25.20 mi14:04:543:38:268:403:56
11:24
+2:04
Finish
26.22 mi14:13:563:47:288:419:02
8:52
-2:32

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

7:32 /mi

Average Pace

8:41 /mi

Slowest Pace

11:28 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:35

54% of race

Time at Steady Pace

34:52

15% of race

Time at Slower Pace

1:10:01

31% of race

Average Pace: 8:41 /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 mi10:49:5123:237:3223:23
7:32
#11001
10K
6.21 mi11:13:5247:247:3824:01
7:44
#11486
15K
9.32 mi11:38:331:12:057:4424:41
7:57
#12012
20K
12.43 mi12:03:381:37:107:4925:05
8:04
#12062
Half
13.11 mi12:09:091:42:417:505:31
8:05
#12111
25K
15.53 mi12:29:032:02:357:5319:54
8:12
#11914
30K
18.64 mi12:59:202:32:528:1230:17
9:45
#12962
20M
20.00 mi13:14:552:48:278:2515:35
11:28
#13921
21M
21.00 mi13:25:292:59:018:3110:34
10:34
#13999
35K
21.75 mi13:31:543:05:268:326:25
8:35
#13846
23M
23.00 mi13:43:203:16:528:3411:26
9:08
#13702
24M
24.00 mi13:52:593:26:318:369:39
9:39
#13768
40K
24.85 mi14:00:583:34:308:387:59
9:20
#13693
25.2M
25.20 mi14:04:543:38:268:403:56
11:24
#13745
Finish
26.22 mi14:13:563:47:288:419:02
8:52
#13710
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi110012570257013055(Top 51%)3835(Top 35%)3835(Top 82%)
10K6.21 mi3.10 mi11486-4852873-3032873-30312108(Top 47%)3252(Top 30%)3252(Top 70%)
15K9.32 mi3.11 mi12012-5263210-3373210-33713055(Top 51%)3835(Top 35%)3835(Top 82%)
20K12.43 mi3.11 mi12062-503259-493259-4912367(Top 48%)3520(Top 32%)3520(Top 76%)
Half13.11 mi0.68 mi12111-493289-303289-3013363(Top 52%)4127(Top 38%)4127(Top 89%)
25K15.53 mi2.42 mi11914+1973213+763213+7611437(Top 45%)3206(Top 29%)3206(Top 69%)
30K18.64 mi3.11 mi12962-10483890-6773890-67716426(Top 64%)6200(Top 57%)6200(Top 133%)
20M20.00 mi1.36 mi13921-9594492-6024492-60220337(Top 80%)8393(Top 77%)8393(Top 180%)
21M21.00 mi1.00 mi13999-784599-1074599-10715066(Top 59%)5853(Top 54%)5853(Top 126%)
35K21.75 mi0.75 mi13846+1534546+534546+5311217(Top 44%)3880(Top 36%)3880(Top 83%)
23M23.00 mi1.25 mi13702+1444523+234523+2311855(Top 46%)4330(Top 40%)4330(Top 93%)
24M24.00 mi1.00 mi13768-664600-774600-7715089(Top 59%)5994(Top 55%)5994(Top 129%)
40K24.85 mi0.85 mi13693+754605-54605-512446(Top 49%)4753(Top 44%)4753(Top 102%)
25.2M25.20 mi0.35 mi13745-524649-444649-4415790(Top 62%)6423(Top 59%)6423(Top 138%)
Finish26.22 mi1.02 mi13710+354657-84657-813549(Top 53%)5254(Top 48%)5254(Top 113%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21story building
+97ft-345ft

Overall

13055

Females

3835

F18-39

3835

5K→10K

3.1 - 6.2 mi

Top 47%
×5story building
+79ft-138ft

Overall

12108

Females

3252

F18-39

3252

10K→15K

6.2 - 9.3 mi

Top 51%
×3story building
+67ft-78ft

Overall

13055

Females

3835

F18-39

3835

15K→20K

9.3 - 12.4 mi

Top 48%
×5story building
+106ft-86ft

Overall

12367

Females

3520

F18-39

3520

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

13363

Females

4127

F18-39

4127

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

11437

Females

3206

F18-39

3206

25K→30K

15.5 - 18.6 mi

Top 64%
×9story building
+181ft-148ft

Overall

16426

Females

6200

F18-39

6200

30K→20M

18.6 - 20.0 mi

Top 80%
×5story building
+64ft-50ft

Overall

20337

Females

8393

F18-39

8393

20M→21M

20.0 - 21.0 mi

Top 59%
×8story building
+106ft-24ft

Overall

15066

Females

5853

F18-39

5853

21M→35K

21.0 - 21.8 mi

Top 44%
×7story building
+17ft-86ft

Overall

11217

Females

3880

F18-39

3880

35K→23M

21.8 - 23.0 mi

Top 46%
×5story building
+23ft-63ft

Overall

11855

Females

4330

F18-39

4330

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

15089

Females

5994

F18-39

5994

24M→40K

24.0 - 24.9 mi

Top 49%
×1story
+6ft-20ft

Overall

12446

Females

4753

F18-39

4753

40K→25.2M

24.9 - 25.2 mi

Top 62%
×1story
+13ft-16ft

Overall

15790

Females

6423

F18-39

6423

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2story building
+22ft-21ft

Overall

13549

Females

5254

F18-39

5254

Passing Analysis

Category:
Athletes Passed
1691
Passed By
4400
Net Change
-2709
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11001
5K → 10K133618-485#11001#11486
10K → 15K88614-526#11486#12012
15K → 20K212262-50#12012#12062
20K → Half2170-49#12062#12111
Half → 25K330133+197#12111#11914
25K → 30K711119-1048#11914#12962
30K → 20M15974-959#12962#13921
20M → 21M126204-78#13921#13999
21M → 35K17118+153#13999#13846
35K → 23M19652+144#13846#13702
23M → 24M77143-66#13702#13768
24M → 40K12651+75#13768#13693
40K → 25.2M2981-52#13693#13745
25.2M → Finish9661+35#13745#13710
TOTALS16914400-2709
📊

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