Marine Corps Marathon logo
MARINE CORPS MARATHON 2024

Bailey Williams

Boston, MA

Bib: 3404 F

0:00
0:00
/ mi
Be the first to cheer!
Overall
#0 / 15907
Top 6%
Gender (Female)
#0 / 5973
Top 2%
Division (F30-34)
#0 / 812
Top 2%
Race Day Weather
43°/33°F
overcast clouds

Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
27 ft elev
5K· 3.11 mi
8:19/mi
25:49
↑ 279↓ 1640.7%
140 ft elev
10K· 6.21 mi
7:30/mi
49:07
↑ 103↓ 2170.7%
25 ft elev
15K· 9.32 mi
7:34/mi
1:12:36
↑ 51↓ 55
21 ft elev
21K· 13.05 mi
7:42/mi
1:41:19
↑ 20↓ 37
4 ft elev
25K· 15.53 mi
7:22/mi
1:59:38
↑ 350.2%
30 ft elev
30K· 18.64 mi
7:43/mi
2:23:36
↑ 58↓ 57
30 ft elev
35K· 21.75 mi
7:27/mi
2:46:44
↑ 98↓ 92
36 ft elev
40K· 24.85 mi
7:35/mi
3:10:17
↑ 36↓ 530.1%
18 ft elev
Finish· 26.22 mi
7:33/mi
3:20:35
↑ 80↓ 240.8%
74 ft elev
Course Elevation
3–237 ft
≈
×20story building
•▲ 764 ft climb · ▼ 717 ft descent

The Course

Half Splits

1st Half· via 21K
1:41:197:46 /mi+2.0%
2nd Half
1:39:157:32 /mi✓ faster
Negative split — 2.0% faster in the second half
Is this your race?

Your race, unpacked

See your splits, ranks & AI insights.

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi08:24:3725:498:1925:49
8:19
-
10K
6.21 mi08:47:5549:077:5423:18
7:30
-0:49
15K
9.32 mi09:11:241:12:367:4723:29
7:34
+0:04
21K
13.05 mi09:40:071:41:197:4628:43
7:42
+0:08
25K
15.53 mi09:58:261:59:387:4218:19
7:22
-0:20
30K
18.64 mi10:22:242:23:367:4223:58
7:43
+0:21
35K
21.75 mi10:45:322:46:447:4023:08
7:27
-0:16
40K
24.85 mi11:09:053:10:177:3923:33
7:35
+0:08
Finish
26.22 mi11:19:233:20:357:3910:18
7:33
-0:02

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

7:22 /mi

Average Pace

7:39 /mi

Slowest Pace

8:19 /mi

Loading chart...
Fastest
Middle
Slowest
Average

Segments

Segment Time Comparison

Time at Faster Pace

2:54:46

87% of race

Time at Steady Pace

25:49

13% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:39 /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 mi08:24:3725:498:1925:49
8:19
#1983
10K
6.21 mi08:47:5549:077:5423:18
7:30
#1641
15K
9.32 mi09:11:241:12:367:4723:29
7:34
#1402
21K
13.05 mi09:40:071:41:197:4628:43
7:42
#1330
25K
15.53 mi09:58:261:59:387:4218:19
7:22
#1265
30K
18.64 mi10:22:242:23:367:4223:58
7:43
#1189
35K
21.75 mi10:45:322:46:447:4023:08
7:27
#1050
40K
24.85 mi11:09:053:10:177:3923:33
7:35
#957
Finish
26.22 mi11:19:233:20:357:3910:18
7:33
#934
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF30-34Seg. OverallSeg. FemalesSeg. F30-34
5K3.11 mi3.11 mi198335438115016421
10K6.21 mi3.10 mi1641+342269+8527+11127318821
15K9.32 mi3.11 mi1402+239218+5124+3115016421
21K13.05 mi3.73 mi1330+72200+1823+1122117622
25K15.53 mi2.48 mi1265+65195+522+1104015320
30K18.64 mi3.11 mi1189+76177+182299014618
35K21.75 mi3.11 mi1050+139158+1921+169810915
40K24.85 mi3.10 mi957+93144+142162710014
Finish26.22 mi1.37 mi934+23142+220+16119812

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 7%
×18story building
+279ft-164ft

Overall

1150

Females

164

F30-34

164

5K→10K

3.1 - 6.2 mi

Top 8%
×11story building
+103ft-217ft

Overall

1273

Females

188

F30-34

188

10K→15K

6.2 - 9.3 mi

Top 7%
×3story building
+51ft-55ft

Overall

1150

Females

164

F30-34

164

15K→21K

9.3 - 13.1 mi

Top 8%
×1story
+20ft-37ft

Overall

1221

Females

176

F30-34

176

21K→25K

13.1 - 15.5 mi

Top 7%
×2story building
+35ft-8ft

Overall

1040

Females

153

F30-34

153

25K→30K

15.5 - 18.6 mi

Top 6%
×2story building
+58ft-57ft

Overall

990

Females

146

F30-34

146

30K→35K

18.6 - 21.8 mi

Top 4%
×2story building
+98ft-92ft

Overall

698

Females

109

F30-34

109

35K→40K

21.8 - 24.9 mi

Top 4%
×2story building
+36ft-53ft

Overall

627

Females

100

F30-34

100

40K→Finish

24.9 - 26.2 mi

Top 4%
×5story building
+80ft-24ft

Overall

611

Females

98

F30-34

98

Passing Analysis

Category:
Athletes Passed
1098*
Passed By
49
Net Change
+1049
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#1983
5K → 10K3486+342#1983#1641
10K → 15K245*6+239#1641#1402
15K → 21K84*12+72#1402#1330
21K → 25K70*5+65#1330#1265
25K → 30K82*6+76#1265#1189
30K → 35K142*3+139#1189#1050
35K → 40K97*4+93#1050#957
40K → Finish307+23#957#934
TOTALS1098*49+1049

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

Passing Charts

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

U.S. Marine Corps Community Services (MCCS)

Timing Productions