Boston Marathon logo
BOSTON MARATHON 2024

Lindsay Harroff

Bib: 13779•F

NC

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Top 27%
Gender (Female)
#0 / 10924
Top 12%
Division (F18-39)
#0 / 4660
Top 22%
Race Day Weather
55°/45°F
scattered clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
23:15
Rank: #10647
Start → 5K
23:15 | 7:29/mi
10K· 6.21 mi
46:21
Rank: #10140 (+507)
5K → 10K
23:06 | 7:26/mi
15K· 9.32 mi
1:09:21
Rank: #9676 (+464)
10K → 15K
23:00 | 7:24/mi
20K· 12.43 mi
1:32:37
Rank: #9265 (+411)
15K → 20K
23:16 | 7:29/mi
Half· 13.11 mi
1:37:39
Rank: #9208 (+57)
20K → Half
5:02 | 7:23/mi
25K· 15.53 mi
1:56:10
Rank: #8919 (+289)
Half → 25K
18:31 | 7:38/mi
30K· 18.64 mi
2:20:35
Rank: #8440 (+479)
25K → 30K
24:25 | 7:52/mi
20M
2:31:21
Rank: #8208 (+232)
30K → 20M
10:46 | 7:55/mi
21M
2:39:58
Rank: #8026 (+182)
20M → 21M
8:37 | 8:37/mi
35K· 21.75 mi
2:45:39
Rank: #7882 (+144)
21M → 35K
5:41 | 7:36/mi
23M
2:55:36
Rank: #7611 (+271)
35K → 23M
9:57 | 7:57/mi
24M
3:03:17
Rank: #7411 (+200)
23M → 24M
7:41 | 7:41/mi
40K· 24.85 mi
3:09:52
Rank: #7215 (+196)
24M → 40K
6:35 | 7:42/mi
25.2M
3:12:45
Rank: #7116 (+99)
40K → 25.2M
2:53 | 8:22/mi
Finish· 26.22 mi
3:20:00
Rank: #6910 (+206)
25.2M → Finish
7:15 | 7:07/mi

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
Time1:37:39
Pace7:27 /mi
2nd Half
Distance13.11 mi
Time1:42:21
Pace7:48 /mi
📊Positive Split: 4.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2923:157:2923:15
7:29
-
10K
6.21 mi11:16:3546:217:2823:06
7:26
-0:03
15K
9.32 mi11:39:351:09:217:2623:00
7:24
-0:02
20K
12.43 mi12:02:511:32:377:2723:16
7:29
+0:05
Half
13.11 mi12:07:531:37:397:275:02
7:23
-0:06
25K
15.53 mi12:26:241:56:107:2918:31
7:38
+0:15
30K
18.64 mi12:50:492:20:357:3224:25
7:52
+0:14
20M
20.00 mi13:01:352:31:217:3410:46
7:55
+0:03
21M
21.00 mi13:10:122:39:587:378:37
8:37
+0:42
35K
21.75 mi13:15:532:45:397:375:41
7:36
-1:01
23M
23.00 mi13:25:502:55:367:389:57
7:57
+0:21
24M
24.00 mi13:33:313:03:177:387:41
7:41
-0:16
40K
24.85 mi13:40:063:09:527:386:35
7:42
+0:01
25.2M
25.20 mi13:42:593:12:457:392:53
8:22
+0:40
Finish
26.22 mi13:50:143:20:007:387:15
7:07
-1:15

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

7:07 /mi

Average Pace

7:38 /mi

Slowest Pace

8:37 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

58:23

29% of race

Time at Steady Pace

1:24:59

42% of race

Time at Slower Pace

56:38

28% of race

Average Pace: 7:38 /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 mi10:53:2923:157:2923:15
7:29
#10647
10K
6.21 mi11:16:3546:217:2823:06
7:26
#10140
15K
9.32 mi11:39:351:09:217:2623:00
7:24
#9676
20K
12.43 mi12:02:511:32:377:2723:16
7:29
#9265
Half
13.11 mi12:07:531:37:397:275:02
7:23
#9208
25K
15.53 mi12:26:241:56:107:2918:31
7:38
#8919
30K
18.64 mi12:50:492:20:357:3224:25
7:52
#8440
20M
20.00 mi13:01:352:31:217:3410:46
7:55
#8208
21M
21.00 mi13:10:122:39:587:378:37
8:37
#8026
35K
21.75 mi13:15:532:45:397:375:41
7:36
#7882
23M
23.00 mi13:25:502:55:367:389:57
7:57
#7611
24M
24.00 mi13:33:313:03:177:387:41
7:41
#7411
40K
24.85 mi13:40:063:09:527:386:35
7:42
#7215
25.2M
25.20 mi13:42:593:12:457:392:53
8:22
#7116
Finish
26.22 mi13:50:143:20:007:387:15
7:07
#6910
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10647237823788930(Top 35%)1668(Top 15%)1668(Top 36%)
10K6.21 mi3.10 mi10140+5072129+2492129+2499723(Top 38%)1984(Top 18%)1984(Top 43%)
15K9.32 mi3.11 mi9676+4641949+1801949+1808930(Top 35%)1668(Top 15%)1668(Top 36%)
20K12.43 mi3.11 mi9265+4111787+1621787+1628313(Top 33%)1513(Top 14%)1513(Top 32%)
Half13.11 mi0.68 mi9208+571770+171770+178330(Top 33%)1530(Top 14%)1530(Top 33%)
25K15.53 mi2.42 mi8919+2891679+911679+917903(Top 31%)1522(Top 14%)1522(Top 33%)
30K18.64 mi3.11 mi8440+4791571+1081571+1087070(Top 28%)1389(Top 13%)1389(Top 30%)
20M20.00 mi1.36 mi8208+2321522+491522+496372(Top 25%)1286(Top 12%)1286(Top 28%)
21M21.00 mi1.00 mi8026+1821495+271495+276806(Top 27%)1635(Top 15%)1635(Top 35%)
35K21.75 mi0.75 mi7882+1441462+331462+335612(Top 22%)1156(Top 11%)1156(Top 25%)
23M23.00 mi1.25 mi7611+2711409+531409+535522(Top 22%)1242(Top 11%)1242(Top 27%)
24M24.00 mi1.00 mi7411+2001370+391370+394992(Top 20%)1095(Top 10%)1095(Top 23%)
40K24.85 mi0.85 mi7215+1961338+321338+324378(Top 17%)949(Top 9%)949(Top 20%)
25.2M25.20 mi0.35 mi7116+991318+201318+204008(Top 16%)848(Top 8%)848(Top 18%)
Finish26.22 mi1.02 mi6910+2061271+471271+473674(Top 14%)685(Top 6%)685(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21stories
+97ft-345ft

Overall

8930

Females

1668

F18-39

1668

5K→10K

3.1 - 6.2 mi

Top 38%
×5stories
+79ft-138ft

Overall

9723

Females

1984

F18-39

1984

10K→15K

6.2 - 9.3 mi

Top 35%
×3stories
+67ft-78ft

Overall

8930

Females

1668

F18-39

1668

15K→20K

9.3 - 12.4 mi

Top 33%
×5stories
+106ft-86ft

Overall

8313

Females

1513

F18-39

1513

20K→Half

12.4 - 13.1 mi

Top 33%
×2stories
+19ft-37ft

Overall

8330

Females

1530

F18-39

1530

Half→25K

13.1 - 15.5 mi

Top 31%
×4stories
+66ft-88ft

Overall

7903

Females

1522

F18-39

1522

25K→30K

15.5 - 18.6 mi

Top 28%
×9stories
+181ft-148ft

Overall

7070

Females

1389

F18-39

1389

30K→20M

18.6 - 20.0 mi

Top 25%
×5stories
+64ft-50ft

Overall

6372

Females

1286

F18-39

1286

20M→21M

20.0 - 21.0 mi

Top 27%
×8stories
+106ft-24ft

Overall

6806

Females

1635

F18-39

1635

21M→35K

21.0 - 21.8 mi

Top 22%
×7stories
+17ft-86ft

Overall

5612

Females

1156

F18-39

1156

35K→23M

21.8 - 23.0 mi

Top 22%
×5stories
+23ft-63ft

Overall

5522

Females

1242

F18-39

1242

23M→24M

23.0 - 24.0 mi

Top 20%
×6stories
+12ft-82ft

Overall

4992

Females

1095

F18-39

1095

24M→40K

24.0 - 24.9 mi

Top 17%
×1story
+6ft-20ft

Overall

4378

Females

949

F18-39

949

40K→25.2M

24.9 - 25.2 mi

Top 16%
×1story
+13ft-16ft

Overall

4008

Females

848

F18-39

848

25.2M→Finish

25.2 - 26.2 mi

Top 14%
×2stories
+22ft-21ft

Overall

3674

Females

685

F18-39

685

Passing Analysis

Category:
Athletes Passed
4105*
Passed By
368
Net Change
+3737
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10647
5K → 10K589*82+507#10647#10140
10K → 15K495*31+464#10140#9676
15K → 20K43827+411#9676#9265
20K → Half647+57#9265#9208
Half → 25K34354+289#9208#8919
25K → 30K53556+479#8919#8440
30K → 20M25321+232#8440#8208
20M → 21M21331+182#8208#8026
21M → 35K15410+144#8026#7882
35K → 23M29524+271#7882#7611
23M → 24M21414+200#7611#7411
24M → 40K2015+196#7411#7215
40K → 25.2M1012+99#7215#7116
25.2M → Finish2104+206#7116#6910
TOTALS4105*368+3737

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

📊

Passing Visuals

Category:
Loading...

🔥Passing Intensity

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