Boston Marathon logo
BOSTON MARATHON 2025

Carey Thomas

Bib: 27823•F

FL

0:00
0:00
/ mi
Masters
Be the first to cheer!
Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
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
11:29/mi
35:40
↑ 97↓ 3451.5%
10K· 6.21 mi
12:10/mi
1:13:27
↑ 79↓ 1380.4%
15K· 9.32 mi
13:10/mi
1:54:21
↑ 67↓ 78
20K· 12.43 mi
13:15/mi
2:35:30
↑ 106↓ 860.1%
Half· 13.11 mi
13:57/mi
2:45:01
↑ 19↓ 370.5%
25K· 15.53 mi
14:20/mi
3:19:46
↑ 66↓ 880.2%
30K· 18.64 mi
16:26/mi
4:10:48
↑ 181↓ 1480.2%
20M
14:11/mi
4:30:04
↑ 64↓ 500.2%
21M
14:34/mi
4:44:38
↑ 106↓ 241.6%
35K· 21.75 mi
17:04/mi
4:57:24
↑ 17↓ 861.7%
23M
15:37/mi
5:16:57
↑ 23↓ 630.6%
24M
14:03/mi
5:31:00
↓ 821.3%
40K· 24.85 mi
14:49/mi
5:43:40
↓ 200.3%
25.2M
20:12/mi
5:50:38
↑ 13↓ 160.2%
Finish· 26.22 mi
14:36/mi
6:05:31
↑ 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
Time2:45:01
Pace12:35 /mi
2nd Half
Distance13.11 mi
Time3:20:30
Pace15:18 /mi
📊Positive Split: 21.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:53:3435:4011:2935:40
11:29
-
10K
6.21 mi12:31:211:13:2711:4937:47
12:10
+0:41
15K
9.32 mi13:12:151:54:2112:1640:54
13:10
+1:00
20K
12.43 mi13:53:242:35:3012:3141:09
13:15
+0:05
Half
13.11 mi14:02:552:45:0112:359:31
13:57
+0:42
25K
15.53 mi14:37:403:19:4612:5234:45
14:20
+0:23
30K
18.64 mi15:28:424:10:4813:2751:02
16:26
+2:06
20M
20.00 mi15:47:584:30:0413:3019:16
14:11
-2:15
21M
21.00 mi16:02:324:44:3813:3314:34
14:34
+0:23
35K
21.75 mi16:15:184:57:2413:4012:46
17:04
+2:30
23M
23.00 mi16:34:515:16:5713:4719:33
15:37
-1:27
24M
24.00 mi16:48:545:31:0013:4814:03
14:03
-1:34
40K
24.85 mi17:01:345:43:4013:5012:40
14:49
+0:46
25.2M
25.20 mi17:08:325:50:3813:556:58
20:12
+5:23
Finish
26.22 mi17:23:256:05:3113:5714:53
14:36
-5:36

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

11:29 /mi

Average Pace

13:57 /mi

Slowest Pace

20:12 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:30

43% of race

Time at Steady Pace

1:59:42

33% of race

Time at Slower Pace

1:30:19

25% of race

Average Pace: 13:56 /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 mi11:53:3435:4011:2935:40
11:29
#27993
10K
6.21 mi12:31:211:13:2711:4937:47
12:10
#28044
15K
9.32 mi13:12:151:54:2112:1640:54
13:10
#28138
20K
12.43 mi13:53:242:35:3012:3141:09
13:15
#28111
Half
13.11 mi14:02:552:45:0112:359:31
13:57
#28141
25K
15.53 mi14:37:403:19:4612:5234:45
14:20
#28152
30K
18.64 mi15:28:424:10:4813:2751:02
16:26
#28259
20M
20.00 mi15:47:584:30:0413:3019:16
14:11
#28239
21M
21.00 mi16:02:324:44:3813:3314:34
14:34
#28208
35K
21.75 mi16:15:184:57:2413:4012:46
17:04
#28244
23M
23.00 mi16:34:515:16:5713:4719:33
15:37
#28255
24M
24.00 mi16:48:545:31:0013:4814:03
14:03
#28248
40K
24.85 mi17:01:345:43:4013:5012:40
14:49
#28245
25.2M
25.20 mi17:08:325:50:3813:556:58
20:12
#28270
Finish
26.22 mi17:23:256:05:3113:5714:53
14:36
#28282
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi27993119581195828222(Top 99%)12124(Top 99%)12124(Top 930%)
10K6.21 mi3.10 mi28044-5111996-3811996-3828024(Top 99%)11990(Top 98%)11990(Top 920%)
15K9.32 mi3.11 mi28138-9412057-6112057-6128222(Top 99%)12124(Top 99%)12124(Top 930%)
20K12.43 mi3.11 mi28111+2712045+1212045+1227956(Top 98%)11971(Top 98%)11971(Top 919%)
Half13.11 mi0.68 mi28141-3012064-1912064-1928261(Top 99%)12160(Top 99%)12160(Top 933%)
25K15.53 mi2.42 mi28152-1112080-1612080-1628037(Top 99%)12035(Top 98%)12035(Top 924%)
30K18.64 mi3.11 mi28259-10712154-7412154-7428314(Top 100%)12192(Top 100%)12192(Top 936%)
20M20.00 mi1.36 mi28239+2012140+1412140+1427410(Top 97%)11769(Top 96%)11769(Top 903%)
21M21.00 mi1.00 mi28208+3112122+1812122+1826765(Top 94%)11454(Top 94%)11454(Top 879%)
35K21.75 mi0.75 mi28244-3612149-2712149-2728316(Top 100%)12199(Top 100%)12199(Top 936%)
23M23.00 mi1.25 mi28255-1112159-1012159-1028083(Top 99%)12120(Top 99%)12120(Top 930%)
24M24.00 mi1.00 mi28248+712155+412155+427675(Top 97%)11976(Top 98%)11976(Top 919%)
40K24.85 mi0.85 mi28245+312156-112156-127684(Top 97%)11960(Top 98%)11960(Top 918%)
25.2M25.20 mi0.35 mi28270-2512171-1512171-1528365(Top 100%)12221(Top 100%)12221(Top 938%)
Finish26.22 mi1.02 mi28282-1212174-312174-328185(Top 99%)12159(Top 99%)12159(Top 933%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 99%
×21story building
+97ft-345ft

Overall

28222

Females

12124

F50-54

12124

5K→10K

3.1 - 6.2 mi

Top 99%
×5story building
+79ft-138ft

Overall

28024

Females

11990

F50-54

11990

10K→15K

6.2 - 9.3 mi

Top 99%
×3story building
+67ft-78ft

Overall

28222

Females

12124

F50-54

12124

15K→20K

9.3 - 12.4 mi

Top 98%
×5story building
+106ft-86ft

Overall

27956

Females

11971

F50-54

11971

20K→Half

12.4 - 13.1 mi

Top 99%
×2story building
+19ft-37ft

Overall

28261

Females

12160

F50-54

12160

Half→25K

13.1 - 15.5 mi

Top 99%
×4story building
+66ft-88ft

Overall

28037

Females

12035

F50-54

12035

25K→30K

15.5 - 18.6 mi

Top 100%
×9story building
+181ft-148ft

Overall

28314

Females

12192

F50-54

12192

30K→20M

18.6 - 20.0 mi

Top 97%
×5story building
+64ft-50ft

Overall

27410

Females

11769

F50-54

11769

20M→21M

20.0 - 21.0 mi

Top 94%
×8story building
+106ft-24ft

Overall

26765

Females

11454

F50-54

11454

21M→35K

21.0 - 21.8 mi

Top 100%
×7story building
+17ft-86ft

Overall

28316

Females

12199

F50-54

12199

35K→23M

21.8 - 23.0 mi

Top 99%
×5story building
+23ft-63ft

Overall

28083

Females

12120

F50-54

12120

23M→24M

23.0 - 24.0 mi

Top 97%
×6story building
+12ft-82ft

Overall

27675

Females

11976

F50-54

11976

24M→40K

24.0 - 24.9 mi

Top 97%
×1story
+6ft-20ft

Overall

27684

Females

11960

F50-54

11960

40K→25.2M

24.9 - 25.2 mi

Top 100%
×1story
+13ft-16ft

Overall

28365

Females

12221

F50-54

12221

25.2M→Finish

25.2 - 26.2 mi

Top 99%
×2story building
+22ft-21ft

Overall

28185

Females

12159

F50-54

12159

Passing Analysis

Category:
Athletes Passed
235
Passed By
524
Net Change
-289
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#27993
5K → 10K51102-51#27993#28044
10K → 15K16110-94#28044#28138
15K → 20K5831+27#28138#28111
20K → Half333-30#28111#28141
Half → 25K2031-11#28141#28152
25K → 30K6113-107#28152#28259
30K → 20M211+20#28259#28239
20M → 21M310+31#28239#28208
21M → 35K238-36#28208#28244
35K → 23M415-11#28244#28255
23M → 24M114+7#28255#28248
24M → 40K96+3#28248#28245
40K → 25.2M025-25#28245#28270
25.2M → Finish315-12#28270#28282
TOTALS235524-289
📊

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