Boston Marathon logo
BOSTON MARATHON 2024

Janelle Black

Bib: 17751•F

ON

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

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
26:15
Rank: #17506
Start → 5K
26:15 | 8:27/mi
10K· 6.21 mi
53:16
Rank: #17930 (-424)
5K → 10K
27:01 | 8:42/mi
15K· 9.32 mi
1:20:43
Rank: #17984 (-54)
10K → 15K
27:27 | 8:50/mi
20K· 12.43 mi
1:49:10
Rank: #17955 (+29)
15K → 20K
28:27 | 9:09/mi
Half· 13.11 mi
1:55:17
Rank: #17948 (+7)
20K → Half
6:07 | 8:58/mi
25K· 15.53 mi
2:17:55
Rank: #17740 (+208)
Half → 25K
22:38 | 9:20/mi
30K· 18.64 mi
2:48:11
Rank: #17462 (+278)
25K → 30K
30:16 | 9:45/mi
20M
3:01:27
Rank: #17318 (+144)
30K → 20M
13:16 | 9:46/mi
21M
3:11:40
Rank: #17115 (+203)
20M → 21M
10:13 | 10:13/mi
35K· 21.75 mi
3:18:33
Rank: #16989 (+126)
21M → 35K
6:53 | 9:12/mi
23M
3:30:30
Rank: #16807 (+182)
35K → 23M
11:57 | 9:33/mi
24M
3:40:05
Rank: #16716 (+91)
23M → 24M
9:35 | 9:35/mi
40K· 24.85 mi
3:48:33
Rank: #16614 (+102)
24M → 40K
8:28 | 9:54/mi
25.2M
3:52:25
Rank: #16585 (+29)
40K → 25.2M
3:52 | 11:13/mi
Finish· 26.22 mi
4:02:37
Rank: #16624 (-39)
25.2M → Finish
10:12 | 10:01/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
Time1:55:17
Pace8:48 /mi
2nd Half
Distance13.11 mi
Time2:07:20
Pace9:43 /mi
📊Positive Split: 10.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:0626:158:2726:15
8:27
-
10K
6.21 mi11:44:0753:168:3427:01
8:42
+0:15
15K
9.32 mi12:11:341:20:438:4027:27
8:50
+0:08
20K
12.43 mi12:40:011:49:108:4728:27
9:09
+0:19
Half
13.11 mi12:46:081:55:178:486:07
8:58
-0:11
25K
15.53 mi13:08:462:17:558:5322:38
9:20
+0:22
30K
18.64 mi13:39:022:48:119:0130:16
9:45
+0:25
20M
20.00 mi13:52:183:01:279:0413:16
9:46
+0:01
21M
21.00 mi14:02:313:11:409:0810:13
10:13
+0:27
35K
21.75 mi14:09:243:18:339:086:53
9:12
-1:01
23M
23.00 mi14:21:213:30:309:0911:57
9:33
+0:21
24M
24.00 mi14:30:563:40:059:109:35
9:35
+0:02
40K
24.85 mi14:39:243:48:339:128:28
9:54
+0:19
25.2M
25.20 mi14:43:163:52:259:133:52
11:13
+1:19
Finish
26.22 mi14:53:284:02:379:1610:12
10:01
-1:12

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

8:27 /mi

Average Pace

9:16 /mi

Slowest Pace

11:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:02:10

50% of race

Time at Steady Pace

1:27:42

36% of race

Time at Slower Pace

32:45

13% of race

Average Pace: 9:15 /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 mi11:17:0626:158:2726:15
8:27
#17506
10K
6.21 mi11:44:0753:168:3427:01
8:42
#17930
15K
9.32 mi12:11:341:20:438:4027:27
8:50
#17984
20K
12.43 mi12:40:011:49:108:4728:27
9:09
#17955
Half
13.11 mi12:46:081:55:178:486:07
8:58
#17948
25K
15.53 mi13:08:462:17:558:5322:38
9:20
#17740
30K
18.64 mi13:39:022:48:119:0130:16
9:45
#17462
20M
20.00 mi13:52:183:01:279:0413:16
9:46
#17318
21M
21.00 mi14:02:313:11:409:0810:13
10:13
#17115
35K
21.75 mi14:09:243:18:339:086:53
9:12
#16989
23M
23.00 mi14:21:213:30:309:0911:57
9:33
#16807
24M
24.00 mi14:30:563:40:059:109:35
9:35
#16716
40K
24.85 mi14:39:243:48:339:128:28
9:54
#16614
25.2M
25.20 mi14:43:163:52:259:133:52
11:13
#16585
Finish
26.22 mi14:53:284:02:379:1610:12
10:01
#16624
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi175066474647418139(Top 71%)6780(Top 62%)6780(Top 145%)
10K6.21 mi3.10 mi17930-4246697-2236697-22318345(Top 72%)6925(Top 63%)6925(Top 149%)
15K9.32 mi3.11 mi17984-546730-336730-3318139(Top 71%)6780(Top 62%)6780(Top 145%)
20K12.43 mi3.11 mi17955+296716+146716+1418033(Top 71%)6718(Top 61%)6718(Top 144%)
Half13.11 mi0.68 mi17948+76713+36713+318114(Top 71%)6842(Top 63%)6842(Top 147%)
25K15.53 mi2.42 mi17740+2086623+906623+9016935(Top 66%)6234(Top 57%)6234(Top 134%)
30K18.64 mi3.11 mi17462+2786515+1086515+10816404(Top 64%)6188(Top 57%)6188(Top 133%)
20M20.00 mi1.36 mi17318+1446472+436472+4315613(Top 61%)6013(Top 55%)6013(Top 129%)
21M21.00 mi1.00 mi17115+2036387+856387+8513828(Top 54%)5228(Top 48%)5228(Top 112%)
35K21.75 mi0.75 mi16989+1266342+456342+4514294(Top 56%)5490(Top 50%)5490(Top 118%)
23M23.00 mi1.25 mi16807+1826264+786264+7813727(Top 54%)5287(Top 48%)5287(Top 113%)
24M24.00 mi1.00 mi16716+916237+276237+2714829(Top 58%)5862(Top 54%)5862(Top 126%)
40K24.85 mi0.85 mi16614+1026215+226215+2214678(Top 57%)5864(Top 54%)5864(Top 126%)
25.2M25.20 mi0.35 mi16585+296212+36212+315217(Top 60%)6143(Top 56%)6143(Top 132%)
Finish26.22 mi1.02 mi16624-396261-496261-4918414(Top 72%)7690(Top 70%)7690(Top 165%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

18139

Females

6780

F18-39

6780

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

18345

Females

6925

F18-39

6925

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

18139

Females

6780

F18-39

6780

15K→20K

9.3 - 12.4 mi

Top 71%
×5stories
+106ft-86ft

Overall

18033

Females

6718

F18-39

6718

20K→Half

12.4 - 13.1 mi

Top 71%
×2stories
+19ft-37ft

Overall

18114

Females

6842

F18-39

6842

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

16935

Females

6234

F18-39

6234

25K→30K

15.5 - 18.6 mi

Top 64%
×9stories
+181ft-148ft

Overall

16404

Females

6188

F18-39

6188

30K→20M

18.6 - 20.0 mi

Top 61%
×5stories
+64ft-50ft

Overall

15613

Females

6013

F18-39

6013

20M→21M

20.0 - 21.0 mi

Top 54%
×8stories
+106ft-24ft

Overall

13828

Females

5228

F18-39

5228

21M→35K

21.0 - 21.8 mi

Top 56%
×7stories
+17ft-86ft

Overall

14294

Females

5490

F18-39

5490

35K→23M

21.8 - 23.0 mi

Top 54%
×5stories
+23ft-63ft

Overall

13727

Females

5287

F18-39

5287

23M→24M

23.0 - 24.0 mi

Top 58%
×6stories
+12ft-82ft

Overall

14829

Females

5862

F18-39

5862

24M→40K

24.0 - 24.9 mi

Top 57%
×1story
+6ft-20ft

Overall

14678

Females

5864

F18-39

5864

40K→25.2M

24.9 - 25.2 mi

Top 60%
×1story
+13ft-16ft

Overall

15217

Females

6143

F18-39

6143

25.2M→Finish

25.2 - 26.2 mi

Top 72%
×2stories
+22ft-21ft

Overall

18414

Females

7690

F18-39

7690

Passing Analysis

Category:
Athletes Passed
2473
Passed By
1591
Net Change
+882
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17506
5K → 10K141565-424#17506#17930
10K → 15K216270-54#17930#17984
15K → 20K258229+29#17984#17955
20K → Half4740+7#17955#17948
Half → 25K30294+208#17948#17740
25K → 30K396118+278#17740#17462
30K → 20M18642+144#17462#17318
20M → 21M22118+203#17318#17115
21M → 35K13610+126#17115#16989
35K → 23M20119+182#16989#16807
23M → 24M12029+91#16807#16716
24M → 40K13735+102#16716#16614
40K → 25.2M4617+29#16614#16585
25.2M → Finish66105-39#16585#16624
TOTALS24731591+882
📊

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