Boston Marathon logo
BOSTON MARATHON 2024

Ciara Slider

Bib: 14221•F

UT

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 25550
Gender (Female)
#0 / 10924
Top 49%
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
25:51
Rank: #16775
Start → 5K
8:19/mi
25:51 split
10K· 6.21 mi
51:07
Rank: #15909 (+866)
5K → 10K
8:08/mi
25:16 split
15K· 9.32 mi
1:17:12
Rank: #15806 (+103)
10K → 15K
8:24/mi
26:05 split
20K· 12.43 mi
1:42:40
Rank: #15095 (+711)
15K → 20K
8:12/mi
25:28 split
Half· 13.11 mi
1:48:29
Rank: #15132 (-37)
20K → Half
8:32/mi
5:49 split
25K· 15.53 mi
2:11:06
Rank: #15443 (-311)
Half → 25K
9:20/mi
22:37 split
30K· 18.64 mi
2:38:55
Rank: #14944 (+499)
25K → 30K
8:57/mi
27:49 split
20M
2:55:38
Rank: #15931 (-987)
30K → 20M
12:18/mi
16:43 split
21M
3:05:13
Rank: #15658 (+273)
20M → 21M
9:35/mi
9:35 split
35K· 21.75 mi
3:12:16
Rank: #15645 (+13)
21M → 35K
9:25/mi
7:03 split
23M
3:23:40
Rank: #15383 (+262)
35K → 23M
9:06/mi
11:24 split
24M
3:32:38
Rank: #15241 (+142)
23M → 24M
8:58/mi
8:58 split
40K· 24.85 mi
3:40:40
Rank: #15108 (+133)
24M → 40K
9:24/mi
8:02 split
25.2M
3:44:09
Rank: #15016 (+92)
40K → 25.2M
10:06/mi
3:29 split
Finish· 26.22 mi
3:53:12
Rank: #14940 (+76)
25.2M → Finish
8:53/mi
9:03 split

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
Time1:48:29
Pace8:17 /mi
2nd Half
Distance13.11 mi
Time2:04:43
Pace9:31 /mi
📊Positive Split: 15.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:57:0725:518:1925:51
8:19
-
10K
6.21 mi11:22:2351:078:1425:16
8:08
-0:11
15K
9.32 mi11:48:281:17:128:1726:05
8:24
+0:16
20K
12.43 mi12:13:561:42:408:1625:28
8:12
-0:12
Half
13.11 mi12:19:451:48:298:175:49
8:32
+0:20
25K
15.53 mi12:42:222:11:068:2622:37
9:20
+0:48
30K
18.64 mi13:10:112:38:558:3227:49
8:57
-0:23
20M
20.00 mi13:26:542:55:388:4716:43
12:18
+3:21
21M
21.00 mi13:36:293:05:138:499:35
9:35
-2:43
35K
21.75 mi13:43:323:12:168:507:03
9:25
-0:10
23M
23.00 mi13:54:563:23:408:5111:24
9:06
-0:19
24M
24.00 mi14:03:543:32:388:528:58
8:58
-0:08
40K
24.85 mi14:11:563:40:408:538:02
9:24
+0:26
25.2M
25.20 mi14:15:253:44:098:543:29
10:06
+0:42
Finish
26.22 mi14:24:283:53:128:549:03
8:53
-1:13

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

8:08 /mi

Average Pace

8:54 /mi

Slowest Pace

12:18 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:40

44% of race

Time at Steady Pace

1:40:45

43% of race

Time at Slower Pace

29:47

13% of race

Average Pace: 8:54 /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 mi10:57:0725:518:1925:51
8:19
#16775
10K
6.21 mi11:22:2351:078:1425:16
8:08
#15909
15K
9.32 mi11:48:281:17:128:1726:05
8:24
#15806
20K
12.43 mi12:13:561:42:408:1625:28
8:12
#15095
Half
13.11 mi12:19:451:48:298:175:49
8:32
#15132
25K
15.53 mi12:42:222:11:068:2622:37
9:20
#15443
30K
18.64 mi13:10:112:38:558:3227:49
8:57
#14944
20M
20.00 mi13:26:542:55:388:4716:43
12:18
#15931
21M
21.00 mi13:36:293:05:138:499:35
9:35
#15658
35K
21.75 mi13:43:323:12:168:507:03
9:25
#15645
23M
23.00 mi13:54:563:23:408:5111:24
9:06
#15383
24M
24.00 mi14:03:543:32:388:528:58
8:58
#15241
40K
24.85 mi14:11:563:40:408:538:02
9:24
#15108
25.2M
25.20 mi14:15:253:44:098:543:29
10:06
#15016
Finish
26.22 mi14:24:283:53:128:549:03
8:53
#14940
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi167756024602415817(Top 62%)5459(Top 50%)5459(Top 117%)
10K6.21 mi3.10 mi15909+8665480+5445480+54415124(Top 59%)5005(Top 46%)5005(Top 107%)
15K9.32 mi3.11 mi15806+1035447+335447+3315817(Top 62%)5459(Top 50%)5459(Top 117%)
20K12.43 mi3.11 mi15095+7115009+4385009+43813140(Top 51%)3929(Top 36%)3929(Top 84%)
Half13.11 mi0.68 mi15132-375037-285037-2815904(Top 62%)5572(Top 51%)5572(Top 120%)
25K15.53 mi2.42 mi15443-3115266-2295266-22916899(Top 66%)6212(Top 57%)6212(Top 133%)
30K18.64 mi3.11 mi14944+4995049+2175049+21713014(Top 51%)4283(Top 39%)4283(Top 92%)
20M20.00 mi1.36 mi15931-9875668-6195668-61921850(Top 86%)9183(Top 84%)9183(Top 197%)
21M21.00 mi1.00 mi15658+2735558+1105558+11011259(Top 44%)3883(Top 36%)3883(Top 83%)
35K21.75 mi0.75 mi15645+135573-155573-1515218(Top 60%)5942(Top 54%)5942(Top 128%)
23M23.00 mi1.25 mi15383+2625473+1005473+10011734(Top 46%)4275(Top 39%)4275(Top 92%)
24M24.00 mi1.00 mi15241+1425422+515422+5112017(Top 47%)4425(Top 41%)4425(Top 95%)
40K24.85 mi0.85 mi15108+1335388+345388+3412731(Top 50%)4918(Top 45%)4918(Top 106%)
25.2M25.20 mi0.35 mi15016+925354+345354+3411411(Top 45%)4311(Top 39%)4311(Top 93%)
Finish26.22 mi1.02 mi14940+765344+105344+1013653(Top 53%)5302(Top 49%)5302(Top 114%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 62%
×21stories
+97ft-345ft

Overall

15817

Females

5459

F18-39

5459

5K→10K

3.1 - 6.2 mi

Top 59%
×5stories
+79ft-138ft

Overall

15124

Females

5005

F18-39

5005

10K→15K

6.2 - 9.3 mi

Top 62%
×3stories
+67ft-78ft

Overall

15817

Females

5459

F18-39

5459

15K→20K

9.3 - 12.4 mi

Top 51%
×5stories
+106ft-86ft

Overall

13140

Females

3929

F18-39

3929

20K→Half

12.4 - 13.1 mi

Top 62%
×2stories
+19ft-37ft

Overall

15904

Females

5572

F18-39

5572

Half→25K

13.1 - 15.5 mi

Top 66%
×4stories
+66ft-88ft

Overall

16899

Females

6212

F18-39

6212

25K→30K

15.5 - 18.6 mi

Top 51%
×9stories
+181ft-148ft

Overall

13014

Females

4283

F18-39

4283

30K→20M

18.6 - 20.0 mi

Top 86%
×5stories
+64ft-50ft

Overall

21850

Females

9183

F18-39

9183

20M→21M

20.0 - 21.0 mi

Top 44%
×8stories
+106ft-24ft

Overall

11259

Females

3883

F18-39

3883

21M→35K

21.0 - 21.8 mi

Top 60%
×7stories
+17ft-86ft

Overall

15218

Females

5942

F18-39

5942

35K→23M

21.8 - 23.0 mi

Top 46%
×5stories
+23ft-63ft

Overall

11734

Females

4275

F18-39

4275

23M→24M

23.0 - 24.0 mi

Top 47%
×6stories
+12ft-82ft

Overall

12017

Females

4425

F18-39

4425

24M→40K

24.0 - 24.9 mi

Top 50%
×1story
+6ft-20ft

Overall

12731

Females

4918

F18-39

4918

40K→25.2M

24.9 - 25.2 mi

Top 45%
×1story
+13ft-16ft

Overall

11411

Females

4311

F18-39

4311

25.2M→Finish

25.2 - 26.2 mi

Top 53%
×2stories
+22ft-21ft

Overall

13653

Females

5302

F18-39

5302

Passing Analysis

Category:
Athletes Passed
3772
Passed By
1937
Net Change
+1835
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16775
5K → 10K91145+866#16775#15909
10K → 15K273170+103#15909#15806
15K → 20K7209+711#15806#15095
20K → Half1956-37#15095#15132
Half → 25K129440-311#15132#15443
25K → 30K54344+499#15443#14944
30K → 20M141001-987#14944#15931
20M → 21M28613+273#15931#15658
21M → 35K7764+13#15658#15645
35K → 23M27412+262#15645#15383
23M → 24M1519+142#15383#15241
24M → 40K16532+133#15241#15108
40K → 25.2M10412+92#15108#15016
25.2M → Finish10630+76#15016#14940
TOTALS37721937+1835
📊

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