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BOSTON MARATHON 2025

Courtney Tracey

Bib: 19537•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
8:21/mi
25:58
↑ 97↓ 3451.5%
10K· 6.21 mi
8:28/mi
52:15
↑ 79↓ 1380.4%
15K· 9.32 mi
8:32/mi
1:18:45
↑ 67↓ 78
20K· 12.43 mi
8:40/mi
1:45:40
↑ 106↓ 860.1%
Half· 13.11 mi
8:32/mi
1:51:29
↑ 19↓ 370.5%
25K· 15.53 mi
8:41/mi
2:12:32
↑ 66↓ 880.2%
30K· 18.64 mi
8:58/mi
2:40:23
↑ 181↓ 1480.2%
20M
8:59/mi
2:52:35
↑ 64↓ 500.2%
21M
9:11/mi
3:01:46
↑ 106↓ 241.6%
35K· 21.75 mi
9:00/mi
3:08:30
↑ 17↓ 861.7%
23M
8:55/mi
3:19:40
↑ 23↓ 630.6%
24M
8:49/mi
3:28:29
↓ 821.3%
40K· 24.85 mi
8:56/mi
3:36:07
↓ 200.3%
25.2M
9:31/mi
3:39:24
↑ 13↓ 160.2%
Finish· 26.22 mi
8:31/mi
3:48:05
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:51:29
Pace8:30 /mi
2nd Half
Distance13.11 mi
Time1:56:36
Pace8:54 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:18:4725:588:2125:58
8:21
-
10K
6.21 mi11:45:0452:158:2526:17
8:28
+0:07
15K
9.32 mi12:11:341:18:458:2726:30
8:32
+0:04
20K
12.43 mi12:38:291:45:408:3026:55
8:40
+0:08
Half
13.11 mi12:44:181:51:298:305:49
8:32
-0:08
25K
15.53 mi13:05:212:12:328:3221:03
8:41
+0:09
30K
18.64 mi13:33:122:40:238:3627:51
8:58
+0:17
20M
20.00 mi13:45:242:52:358:3812:12
8:59
+0:01
21M
21.00 mi13:54:353:01:468:399:11
9:11
+0:12
35K
21.75 mi14:01:193:08:308:406:44
9:00
-0:11
23M
23.00 mi14:12:293:19:408:4111:10
8:55
-0:05
24M
24.00 mi14:21:183:28:298:418:49
8:49
-0:06
40K
24.85 mi14:28:563:36:078:427:38
8:56
+0:07
25.2M
25.20 mi14:32:133:39:248:423:17
9:31
+0:35
Finish
26.22 mi14:40:543:48:058:428:41
8:31
-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

8:21 /mi

Average Pace

8:42 /mi

Slowest Pace

9:31 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:44:48

99% of race

Time at Steady Pace

3:17

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:42 /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 mi11:18:4725:588:2125:58
8:21
#19061
10K
6.21 mi11:45:0452:158:2526:17
8:28
#19291
15K
9.32 mi12:11:341:18:458:2726:30
8:32
#19351
20K
12.43 mi12:38:291:45:408:3026:55
8:40
#19279
Half
13.11 mi12:44:181:51:298:305:49
8:32
#19287
25K
15.53 mi13:05:212:12:328:3221:03
8:41
#19106
30K
18.64 mi13:33:122:40:238:3627:51
8:58
#18783
20M
20.00 mi13:45:242:52:358:3812:12
8:59
#18591
21M
21.00 mi13:54:353:01:468:399:11
9:11
#18335
35K
21.75 mi14:01:193:08:308:406:44
9:00
#18338
23M
23.00 mi14:12:293:19:408:4111:10
8:55
#18177
24M
24.00 mi14:21:183:28:298:418:49
8:49
#18074
40K
24.85 mi14:28:563:36:078:427:38
8:56
#17980
25.2M
25.20 mi14:32:133:39:248:423:17
9:31
#17931
Finish
26.22 mi14:40:543:48:058:428:41
8:31
#17860
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi190616943694319510(Top 69%)7176(Top 59%)7176(Top 131%)
10K6.21 mi3.10 mi19291-2307060-1177060-11719572(Top 69%)7214(Top 59%)7214(Top 132%)
15K9.32 mi3.11 mi19351-607093-337093-3319510(Top 69%)7176(Top 59%)7176(Top 131%)
20K12.43 mi3.11 mi19279+727066+277066+2719222(Top 68%)7033(Top 58%)7033(Top 129%)
Half13.11 mi0.68 mi19287-87074-87074-819391(Top 68%)7112(Top 58%)7112(Top 130%)
25K15.53 mi2.42 mi19106+1816973+1016973+10118297(Top 64%)6588(Top 54%)6588(Top 120%)
30K18.64 mi3.11 mi18783+3236815+1586815+15817498(Top 62%)6305(Top 52%)6305(Top 115%)
20M20.00 mi1.36 mi18591+1926736+796736+7916698(Top 59%)5976(Top 49%)5976(Top 109%)
21M21.00 mi1.00 mi18335+2566626+1106626+11014580(Top 51%)4946(Top 40%)4946(Top 90%)
35K21.75 mi0.75 mi18338-36646-206646-2018247(Top 64%)7039(Top 58%)7039(Top 129%)
23M23.00 mi1.25 mi18177+1616588+586588+5815823(Top 56%)5794(Top 47%)5794(Top 106%)
24M24.00 mi1.00 mi18074+1036555+336555+3316443(Top 58%)6179(Top 51%)6179(Top 113%)
40K24.85 mi0.85 mi17980+946538+176538+1715929(Top 56%)6009(Top 49%)6009(Top 110%)
25.2M25.20 mi0.35 mi17931+496519+196519+1914786(Top 52%)5456(Top 45%)5456(Top 100%)
Finish26.22 mi1.02 mi17860+716494+256494+2516385(Top 58%)6245(Top 51%)6245(Top 114%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 69%
×21story building
+97ft-345ft

Overall

19510

Females

7176

F18-39

7176

5K→10K

3.1 - 6.2 mi

Top 69%
×5story building
+79ft-138ft

Overall

19572

Females

7214

F18-39

7214

10K→15K

6.2 - 9.3 mi

Top 69%
×3story building
+67ft-78ft

Overall

19510

Females

7176

F18-39

7176

15K→20K

9.3 - 12.4 mi

Top 68%
×5story building
+106ft-86ft

Overall

19222

Females

7033

F18-39

7033

20K→Half

12.4 - 13.1 mi

Top 68%
×2story building
+19ft-37ft

Overall

19391

Females

7112

F18-39

7112

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

18297

Females

6588

F18-39

6588

25K→30K

15.5 - 18.6 mi

Top 62%
×9story building
+181ft-148ft

Overall

17498

Females

6305

F18-39

6305

30K→20M

18.6 - 20.0 mi

Top 59%
×5story building
+64ft-50ft

Overall

16698

Females

5976

F18-39

5976

20M→21M

20.0 - 21.0 mi

Top 51%
×8story building
+106ft-24ft

Overall

14580

Females

4946

F18-39

4946

21M→35K

21.0 - 21.8 mi

Top 64%
×7story building
+17ft-86ft

Overall

18247

Females

7039

F18-39

7039

35K→23M

21.8 - 23.0 mi

Top 56%
×5story building
+23ft-63ft

Overall

15823

Females

5794

F18-39

5794

23M→24M

23.0 - 24.0 mi

Top 58%
×6story building
+12ft-82ft

Overall

16443

Females

6179

F18-39

6179

24M→40K

24.0 - 24.9 mi

Top 56%
×1story
+6ft-20ft

Overall

15929

Females

6009

F18-39

6009

40K→25.2M

24.9 - 25.2 mi

Top 52%
×1story
+13ft-16ft

Overall

14786

Females

5456

F18-39

5456

25.2M→Finish

25.2 - 26.2 mi

Top 58%
×2story building
+22ft-21ft

Overall

16385

Females

6245

F18-39

6245

Passing Analysis

Category:
Athletes Passed
2378
Passed By
1177
Net Change
+1201
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19061
5K → 10K161391-230#19061#19291
10K → 15K168228-60#19291#19351
15K → 20K225153+72#19351#19279
20K → Half3442-8#19279#19287
Half → 25K25978+181#19287#19106
25K → 30K39774+323#19106#18783
30K → 20M21119+192#18783#18591
20M → 21M2659+256#18591#18335
21M → 35K5962-3#18335#18338
35K → 23M18726+161#18338#18177
23M → 24M12421+103#18177#18074
24M → 40K11925+94#18074#17980
40K → 25.2M5910+49#17980#17931
25.2M → Finish11039+71#17931#17860
TOTALS23781177+1201
📊

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