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BOSTON MARATHON 2025

Courtney Holliday

Bib: 18022•F

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0:00
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Overall
#0 / 28404
Top 41%
Gender (Female)
#0 / 12228
Top 26%
Division (F18-39)
#0 / 5469
Top 43%
Race Day Weather
50°/40°F
broken 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
7:41/mi
23:53
↑ 97↓ 3451.5%
10K· 6.21 mi
7:42/mi
47:47
↑ 79↓ 1380.4%
15K· 9.32 mi
7:50/mi
1:12:08
↑ 67↓ 78
20K· 12.43 mi
7:49/mi
1:36:24
↑ 106↓ 860.1%
Half· 13.11 mi
7:40/mi
1:41:38
↑ 19↓ 370.5%
25K· 15.53 mi
7:46/mi
2:00:27
↑ 66↓ 880.2%
30K· 18.64 mi
7:58/mi
2:25:11
↑ 181↓ 1480.2%
20M
8:03/mi
2:36:07
↑ 64↓ 500.2%
21M
8:41/mi
2:44:48
↑ 106↓ 241.6%
35K· 21.75 mi
7:42/mi
2:50:34
↑ 17↓ 861.7%
23M
7:59/mi
3:00:34
↑ 23↓ 630.6%
24M
7:45/mi
3:08:19
↓ 821.3%
40K· 24.85 mi
7:41/mi
3:14:53
↓ 200.3%
25.2M
8:19/mi
3:17:45
↑ 13↓ 160.2%
Finish· 26.22 mi
7:19/mi
3:25:12
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:41:38
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:43:34
Pace7:54 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:0323:537:4123:53
7:41
-
10K
6.21 mi11:37:5747:477:4123:54
7:42
+0:01
15K
9.32 mi12:02:181:12:087:4424:21
7:50
+0:08
20K
12.43 mi12:26:341:36:247:4524:16
7:49
-0:01
Half
13.11 mi12:31:481:41:387:455:14
7:40
-0:09
25K
15.53 mi12:50:372:00:277:4518:49
7:46
+0:06
30K
18.64 mi13:15:212:25:117:4724:44
7:58
+0:12
20M
20.00 mi13:26:172:36:077:4810:56
8:03
+0:05
21M
21.00 mi13:34:582:44:487:518:41
8:41
+0:38
35K
21.75 mi13:40:442:50:347:515:46
7:42
-0:59
23M
23.00 mi13:50:443:00:347:5110:00
7:59
+0:17
24M
24.00 mi13:58:293:08:197:517:45
7:45
-0:14
40K
24.85 mi14:05:033:14:537:506:34
7:41
-0:04
25.2M
25.20 mi14:07:553:17:457:512:52
8:19
+0:38
Finish
26.22 mi14:15:223:25:127:507:27
7:19
-1:00

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

7:19 /mi

Average Pace

7:50 /mi

Slowest Pace

8:41 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:02:43

89% of race

Time at Steady Pace

13:48

7% of race

Time at Slower Pace

8:41

4% of race

Average Pace: 7:50 /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 mi11:14:0323:537:4123:53
7:41
#13877
10K
6.21 mi11:37:5747:477:4123:54
7:42
#13840
15K
9.32 mi12:02:181:12:087:4424:21
7:50
#14107
20K
12.43 mi12:26:341:36:247:4524:16
7:49
#13880
Half
13.11 mi12:31:481:41:387:455:14
7:40
#13822
25K
15.53 mi12:50:372:00:277:4518:49
7:46
#13472
30K
18.64 mi13:15:212:25:117:4724:44
7:58
#12980
20M
20.00 mi13:26:172:36:077:4810:56
8:03
#12782
21M
21.00 mi13:34:582:44:487:518:41
8:41
#12677
35K
21.75 mi13:40:442:50:347:515:46
7:42
#12561
23M
23.00 mi13:50:443:00:347:5110:00
7:59
#12359
24M
24.00 mi13:58:293:08:197:517:45
7:45
#12229
40K
24.85 mi14:05:033:14:537:506:34
7:41
#12031
25.2M
25.20 mi14:07:553:17:457:512:52
8:19
#11936
Finish
26.22 mi14:15:223:25:127:507:27
7:19
#11746
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi138773823382314696(Top 52%)4410(Top 36%)4410(Top 81%)
10K6.21 mi3.10 mi13840+373846-233846-2313833(Top 49%)3855(Top 32%)3855(Top 70%)
15K9.32 mi3.11 mi14107-2674033-1874033-18714696(Top 52%)4410(Top 36%)4410(Top 81%)
20K12.43 mi3.11 mi13880+2273942+913942+9113362(Top 47%)3737(Top 31%)3737(Top 68%)
Half13.11 mi0.68 mi13822+583920+223920+2213192(Top 46%)3592(Top 29%)3592(Top 66%)
25K15.53 mi2.42 mi13472+3503755+1653755+16512048(Top 42%)3142(Top 26%)3142(Top 57%)
30K18.64 mi3.11 mi12980+4923540+2153540+21511122(Top 39%)2852(Top 23%)2852(Top 52%)
20M20.00 mi1.36 mi12782+1983459+813459+8110774(Top 38%)2821(Top 23%)2821(Top 52%)
21M21.00 mi1.00 mi12677+1053435+243435+2411596(Top 41%)3394(Top 28%)3394(Top 62%)
35K21.75 mi0.75 mi12561+1163397+383397+3810190(Top 36%)2708(Top 22%)2708(Top 50%)
23M23.00 mi1.25 mi12359+2023325+723325+729957(Top 35%)2724(Top 22%)2724(Top 50%)
24M24.00 mi1.00 mi12229+1303288+373288+379492(Top 33%)2569(Top 21%)2569(Top 47%)
40K24.85 mi0.85 mi12031+1983228+603228+608013(Top 28%)2005(Top 16%)2005(Top 37%)
25.2M25.20 mi0.35 mi11936+953192+363192+367812(Top 28%)2001(Top 16%)2001(Top 37%)
Finish26.22 mi1.02 mi11746+1903128+643128+647892(Top 28%)2033(Top 17%)2033(Top 37%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 52%
×21story building
+97ft-345ft

Overall

14696

Females

4410

F18-39

4410

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13833

Females

3855

F18-39

3855

10K→15K

6.2 - 9.3 mi

Top 52%
×3story building
+67ft-78ft

Overall

14696

Females

4410

F18-39

4410

15K→20K

9.3 - 12.4 mi

Top 47%
×5story building
+106ft-86ft

Overall

13362

Females

3737

F18-39

3737

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

13192

Females

3592

F18-39

3592

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

12048

Females

3142

F18-39

3142

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

11122

Females

2852

F18-39

2852

30K→20M

18.6 - 20.0 mi

Top 38%
×5story building
+64ft-50ft

Overall

10774

Females

2821

F18-39

2821

20M→21M

20.0 - 21.0 mi

Top 41%
×8story building
+106ft-24ft

Overall

11596

Females

3394

F18-39

3394

21M→35K

21.0 - 21.8 mi

Top 36%
×7story building
+17ft-86ft

Overall

10190

Females

2708

F18-39

2708

35K→23M

21.8 - 23.0 mi

Top 35%
×5story building
+23ft-63ft

Overall

9957

Females

2724

F18-39

2724

23M→24M

23.0 - 24.0 mi

Top 33%
×6story building
+12ft-82ft

Overall

9492

Females

2569

F18-39

2569

24M→40K

24.0 - 24.9 mi

Top 28%
×1story
+6ft-20ft

Overall

8013

Females

2005

F18-39

2005

40K→25.2M

24.9 - 25.2 mi

Top 28%
×1story
+13ft-16ft

Overall

7812

Females

2001

F18-39

2001

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

7892

Females

2033

F18-39

2033

Passing Analysis

Category:
Athletes Passed
3077
Passed By
946
Net Change
+2131
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13877
5K → 10K287250+37#13877#13840
10K → 15K110377-267#13840#14107
15K → 20K31891+227#14107#13880
20K → Half6810+58#13880#13822
Half → 25K37424+350#13822#13472
25K → 30K53745+492#13472#12980
30K → 20M22830+198#12980#12782
20M → 21M16358+105#12782#12677
21M → 35K12711+116#12677#12561
35K → 23M21816+202#12561#12359
23M → 24M14515+130#12359#12229
24M → 40K2057+198#12229#12031
40K → 25.2M961+95#12031#11936
25.2M → Finish20111+190#11936#11746
TOTALS3077946+2131
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing