Boston Marathon logo
BOSTON MARATHON 2024

Shelby Atkinson

Bib: 15371•F

FL

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 21%
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
7:30/mi
23:17
↑ 97↓ 3451.5%
10K· 6.21 mi
7:30/mi
46:36
↑ 79↓ 1380.4%
15K· 9.32 mi
7:28/mi
1:09:47
↑ 67↓ 78
20K· 12.43 mi
7:35/mi
1:33:22
↑ 106↓ 860.1%
Half· 13.11 mi
7:27/mi
1:38:27
↑ 19↓ 370.5%
25K· 15.53 mi
7:38/mi
1:56:58
↑ 66↓ 880.2%
30K· 18.64 mi
7:44/mi
2:20:59
↑ 181↓ 1480.2%
20M
7:41/mi
2:31:25
↑ 64↓ 500.2%
21M
8:15/mi
2:39:40
↑ 106↓ 241.6%
35K· 21.75 mi
7:52/mi
2:45:33
↑ 17↓ 861.7%
23M
7:50/mi
2:55:22
↑ 23↓ 630.6%
24M
7:33/mi
3:02:55
↓ 821.3%
40K· 24.85 mi
7:51/mi
3:09:38
↓ 200.3%
25.2M
8:27/mi
3:12:33
↑ 13↓ 160.2%
Finish· 26.22 mi
7:14/mi
3:19:55
↑ 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
Time1:38:27
Pace7:31 /mi
2nd Half
Distance13.11 mi
Time1:41:28
Pace7:44 /mi
📊Positive Split: 3.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:53:2323:177:3023:17
7:30
-
10K
6.21 mi11:16:4246:367:3023:19
7:30
0:00
15K
9.32 mi11:39:531:09:477:2923:11
7:28
-0:02
20K
12.43 mi12:03:281:33:227:3123:35
7:35
+0:07
Half
13.11 mi12:08:331:38:277:315:05
7:27
-0:08
25K
15.53 mi12:27:041:56:587:3218:31
7:38
+0:11
30K
18.64 mi12:51:052:20:597:3424:01
7:44
+0:06
20M
20.00 mi13:01:312:31:257:3410:26
7:41
-0:03
21M
21.00 mi13:09:462:39:407:368:15
8:15
+0:34
35K
21.75 mi13:15:392:45:337:375:53
7:52
-0:23
23M
23.00 mi13:25:282:55:227:379:49
7:50
-0:02
24M
24.00 mi13:33:013:02:557:377:33
7:33
-0:17
40K
24.85 mi13:39:443:09:387:386:43
7:51
+0:18
25.2M
25.20 mi13:42:393:12:337:382:55
8:27
+0:36
Finish
26.22 mi13:50:013:19:557:387:22
7:14
-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

7:14 /mi

Average Pace

7:38 /mi

Slowest Pace

8:27 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:08:45

94% of race

Time at Steady Pace

11:10

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:37 /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 mi10:53:2323:177:3023:17
7:30
#10715
10K
6.21 mi11:16:4246:367:3023:19
7:30
#10490
15K
9.32 mi11:39:531:09:477:2923:11
7:28
#10063
20K
12.43 mi12:03:281:33:227:3123:35
7:35
#9725
Half
13.11 mi12:08:331:38:277:315:05
7:27
#9660
25K
15.53 mi12:27:041:56:587:3218:31
7:38
#9292
30K
18.64 mi12:51:052:20:597:3424:01
7:44
#8575
20M
20.00 mi13:01:312:31:257:3410:26
7:41
#8223
21M
21.00 mi13:09:462:39:407:368:15
8:15
#7931
35K
21.75 mi13:15:392:45:337:375:53
7:52
#7843
23M
23.00 mi13:25:282:55:227:379:49
7:50
#7540
24M
24.00 mi13:33:013:02:557:377:33
7:33
#7315
40K
24.85 mi13:39:443:09:387:386:43
7:51
#7152
25.2M
25.20 mi13:42:393:12:337:382:55
8:27
#7069
Finish
26.22 mi13:50:013:19:557:387:22
7:14
#6883
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi10715240924099363(Top 37%)1858(Top 17%)1858(Top 40%)
10K6.21 mi3.10 mi10490+2252318+912318+9110315(Top 40%)2250(Top 21%)2250(Top 48%)
15K9.32 mi3.11 mi10063+4272123+1952123+1959363(Top 37%)1858(Top 17%)1858(Top 40%)
20K12.43 mi3.11 mi9725+3382005+1182005+1189017(Top 35%)1809(Top 17%)1809(Top 39%)
Half13.11 mi0.68 mi9660+651983+221983+228772(Top 34%)1693(Top 15%)1693(Top 36%)
25K15.53 mi2.42 mi9292+3681846+1371846+1377885(Top 31%)1504(Top 14%)1504(Top 32%)
30K18.64 mi3.11 mi8575+7171618+2281618+2286306(Top 25%)1085(Top 10%)1085(Top 23%)
20M20.00 mi1.36 mi8223+3521530+881530+885119(Top 20%)795(Top 7%)795(Top 17%)
21M21.00 mi1.00 mi7931+2921453+771453+775148(Top 20%)949(Top 9%)949(Top 20%)
35K21.75 mi0.75 mi7843+881446+71446+76975(Top 27%)1731(Top 16%)1731(Top 37%)
23M23.00 mi1.25 mi7540+3031374+721374+725010(Top 20%)1015(Top 9%)1015(Top 22%)
24M24.00 mi1.00 mi7315+2251329+451329+454362(Top 17%)825(Top 8%)825(Top 18%)
40K24.85 mi0.85 mi7152+1631308+211308+215084(Top 20%)1220(Top 11%)1220(Top 26%)
25.2M25.20 mi0.35 mi7069+831293+151293+154333(Top 17%)961(Top 9%)961(Top 21%)
Finish26.22 mi1.02 mi6883+1861258+351258+354177(Top 16%)857(Top 8%)857(Top 18%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 37%
×21story building
+97ft-345ft

Overall

9363

Females

1858

F18-39

1858

5K→10K

3.1 - 6.2 mi

Top 40%
×5story building
+79ft-138ft

Overall

10315

Females

2250

F18-39

2250

10K→15K

6.2 - 9.3 mi

Top 37%
×3story building
+67ft-78ft

Overall

9363

Females

1858

F18-39

1858

15K→20K

9.3 - 12.4 mi

Top 35%
×5story building
+106ft-86ft

Overall

9017

Females

1809

F18-39

1809

20K→Half

12.4 - 13.1 mi

Top 34%
×2story building
+19ft-37ft

Overall

8772

Females

1693

F18-39

1693

Half→25K

13.1 - 15.5 mi

Top 31%
×4story building
+66ft-88ft

Overall

7885

Females

1504

F18-39

1504

25K→30K

15.5 - 18.6 mi

Top 25%
×9story building
+181ft-148ft

Overall

6306

Females

1085

F18-39

1085

30K→20M

18.6 - 20.0 mi

Top 20%
×5story building
+64ft-50ft

Overall

5119

Females

795

F18-39

795

20M→21M

20.0 - 21.0 mi

Top 20%
×8story building
+106ft-24ft

Overall

5148

Females

949

F18-39

949

21M→35K

21.0 - 21.8 mi

Top 27%
×7story building
+17ft-86ft

Overall

6975

Females

1731

F18-39

1731

35K→23M

21.8 - 23.0 mi

Top 20%
×5story building
+23ft-63ft

Overall

5010

Females

1015

F18-39

1015

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4362

Females

825

F18-39

825

24M→40K

24.0 - 24.9 mi

Top 20%
×1story
+6ft-20ft

Overall

5084

Females

1220

F18-39

1220

40K→25.2M

24.9 - 25.2 mi

Top 17%
×1story
+13ft-16ft

Overall

4333

Females

961

F18-39

961

25.2M→Finish

25.2 - 26.2 mi

Top 16%
×2story building
+22ft-21ft

Overall

4177

Females

857

F18-39

857

Passing Analysis

Category:
Athletes Passed
4245*
Passed By
413
Net Change
+3832
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#10715
5K → 10K404179+225#10715#10490
10K → 15K467*40+427#10490#10063
15K → 20K404*66+338#10063#9725
20K → Half727+65#9725#9660
Half → 25K39527+368#9660#9292
25K → 30K73215+717#9292#8575
30K → 20M3531+352#8575#8223
20M → 21M3019+292#8223#7931
21M → 35K10921+88#7931#7843
35K → 23M32017+303#7843#7540
23M → 24M23510+225#7540#7315
24M → 40K17411+163#7315#7152
40K → 25.2M863+83#7152#7069
25.2M → Finish1937+186#7069#6883
TOTALS4245*413+3832

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

📊

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