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BOSTON MARATHON 2025

Caitlin Castagna

Bib: 19163•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Top 42%
Division (F40-44)
#0 / 1718
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
8:34/mi
26:37
↑ 97↓ 3451.5%
10K· 6.21 mi
8:48/mi
53:58
↑ 79↓ 1380.4%
15K· 9.32 mi
9:07/mi
1:22:16
↑ 67↓ 78
20K· 12.43 mi
8:33/mi
1:48:51
↑ 106↓ 860.1%
Half· 13.11 mi
8:33/mi
1:54:41
↑ 19↓ 370.5%
25K· 15.53 mi
8:40/mi
2:15:42
↑ 66↓ 880.2%
30K· 18.64 mi
8:34/mi
2:42:18
↑ 181↓ 1480.2%
20M
8:37/mi
2:54:00
↑ 64↓ 500.2%
21M
8:52/mi
3:02:52
↑ 106↓ 241.6%
35K· 21.75 mi
8:29/mi
3:09:13
↑ 17↓ 861.7%
23M
8:30/mi
3:19:51
↑ 23↓ 630.6%
24M
8:31/mi
3:28:22
↓ 821.3%
40K· 24.85 mi
8:43/mi
3:35:49
↓ 200.3%
25.2M
9:17/mi
3:39:01
↑ 13↓ 160.2%
Finish· 26.22 mi
7:54/mi
3:47:04
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half
Distance13.11 mi
Time1:54:41
Pace8:45 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:52:23
Pace8:34 /mi
📊Negative Split: 2.0% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:4026:378:3426:37
8:34
-
10K
6.21 mi11:45:0153:588:4127:21
8:48
+0:14
15K
9.32 mi12:13:191:22:168:5028:18
9:07
+0:19
20K
12.43 mi12:39:541:48:518:4626:35
8:33
-0:34
Half
13.11 mi12:45:441:54:418:455:50
8:33
0:00
25K
15.53 mi13:06:452:15:428:4421:01
8:40
+0:07
30K
18.64 mi13:33:212:42:188:4226:36
8:34
-0:06
20M
20.00 mi13:45:032:54:008:4211:42
8:37
+0:03
21M
21.00 mi13:53:553:02:528:428:52
8:52
+0:15
35K
21.75 mi14:00:163:09:138:426:21
8:29
-0:23
23M
23.00 mi14:10:543:19:518:4110:38
8:30
+0:01
24M
24.00 mi14:19:253:28:228:418:31
8:31
+0:01
40K
24.85 mi14:26:523:35:498:417:27
8:43
+0:12
25.2M
25.20 mi14:30:043:39:018:413:12
9:17
+0:34
Finish
26.22 mi14:38:073:47:048:408:03
7:54
-1:23

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

7:54 /mi

Average Pace

8:40 /mi

Slowest Pace

9:17 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:31:54

67% of race

Time at Steady Pace

1:15:10

33% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:40 /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 mi11:17:4026:378:3426:37
8:34
#20291
10K
6.21 mi11:45:0153:588:4127:21
8:48
#20844
15K
9.32 mi12:13:191:22:168:5028:18
9:07
#21408
20K
12.43 mi12:39:541:48:518:4626:35
8:33
#20716
Half
13.11 mi12:45:441:54:418:455:50
8:33
#20658
25K
15.53 mi13:06:452:15:428:4421:01
8:40
#20277
30K
18.64 mi13:33:212:42:188:4226:36
8:34
#19355
20M
20.00 mi13:45:032:54:008:4211:42
8:37
#19033
21M
21.00 mi13:53:553:02:528:428:52
8:52
#18660
35K
21.75 mi14:00:163:09:138:426:21
8:29
#18551
23M
23.00 mi14:10:543:19:518:4110:38
8:30
#18215
24M
24.00 mi14:19:253:28:228:418:31
8:31
#18039
40K
24.85 mi14:26:523:35:498:417:27
8:43
#17907
25.2M
25.20 mi14:30:043:39:018:413:12
9:17
#17832
Finish
26.22 mi14:38:073:47:048:408:03
7:54
#17616
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi202917676767622492(Top 79%)8825(Top 72%)8825(Top 514%)
10K6.21 mi3.10 mi20844-5537961-2857961-28521417(Top 75%)8257(Top 68%)8257(Top 481%)
15K9.32 mi3.11 mi21408-5648252-2918252-29122492(Top 79%)8825(Top 72%)8825(Top 514%)
20K12.43 mi3.11 mi20716+6927881+3717881+37118585(Top 65%)6673(Top 55%)6673(Top 388%)
Half13.11 mi0.68 mi20658+587848+337848+3319537(Top 69%)7193(Top 59%)7193(Top 419%)
25K15.53 mi2.42 mi20277+3817646+2027646+20218207(Top 64%)6538(Top 53%)6538(Top 381%)
30K18.64 mi3.11 mi19355+9227162+4847162+48415168(Top 53%)5000(Top 41%)5000(Top 291%)
20M20.00 mi1.36 mi19033+3226998+1646998+16414530(Top 51%)4799(Top 39%)4799(Top 279%)
21M21.00 mi1.00 mi18660+3736810+1886810+18812764(Top 45%)4025(Top 33%)4025(Top 234%)
35K21.75 mi0.75 mi18551+1096767+436767+4315447(Top 54%)5503(Top 45%)5503(Top 320%)
23M23.00 mi1.25 mi18215+3366609+1586609+15813307(Top 47%)4445(Top 36%)4445(Top 259%)
24M24.00 mi1.00 mi18039+1766537+726537+7214665(Top 52%)5201(Top 43%)5201(Top 303%)
40K24.85 mi0.85 mi17907+1326494+436494+4314739(Top 52%)5393(Top 44%)5393(Top 314%)
25.2M25.20 mi0.35 mi17832+756464+306464+3013462(Top 47%)4771(Top 39%)4771(Top 278%)
Finish26.22 mi1.02 mi17616+2166371+936371+9312223(Top 43%)4060(Top 33%)4060(Top 236%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 79%
×21story building
+97ft-345ft

Overall

22492

Females

8825

F40-44

8825

5K→10K

3.1 - 6.2 mi

Top 75%
×5story building
+79ft-138ft

Overall

21417

Females

8257

F40-44

8257

10K→15K

6.2 - 9.3 mi

Top 79%
×3story building
+67ft-78ft

Overall

22492

Females

8825

F40-44

8825

15K→20K

9.3 - 12.4 mi

Top 65%
×5story building
+106ft-86ft

Overall

18585

Females

6673

F40-44

6673

20K→Half

12.4 - 13.1 mi

Top 69%
×2story building
+19ft-37ft

Overall

19537

Females

7193

F40-44

7193

Half→25K

13.1 - 15.5 mi

Top 64%
×4story building
+66ft-88ft

Overall

18207

Females

6538

F40-44

6538

25K→30K

15.5 - 18.6 mi

Top 53%
×9story building
+181ft-148ft

Overall

15168

Females

5000

F40-44

5000

30K→20M

18.6 - 20.0 mi

Top 51%
×5story building
+64ft-50ft

Overall

14530

Females

4799

F40-44

4799

20M→21M

20.0 - 21.0 mi

Top 45%
×8story building
+106ft-24ft

Overall

12764

Females

4025

F40-44

4025

21M→35K

21.0 - 21.8 mi

Top 54%
×7story building
+17ft-86ft

Overall

15447

Females

5503

F40-44

5503

35K→23M

21.8 - 23.0 mi

Top 47%
×5story building
+23ft-63ft

Overall

13307

Females

4445

F40-44

4445

23M→24M

23.0 - 24.0 mi

Top 52%
×6story building
+12ft-82ft

Overall

14665

Females

5201

F40-44

5201

24M→40K

24.0 - 24.9 mi

Top 52%
×1story
+6ft-20ft

Overall

14739

Females

5393

F40-44

5393

40K→25.2M

24.9 - 25.2 mi

Top 47%
×1story
+13ft-16ft

Overall

13462

Females

4771

F40-44

4771

25.2M→Finish

25.2 - 26.2 mi

Top 43%
×2story building
+22ft-21ft

Overall

12223

Females

4060

F40-44

4060

Passing Analysis

Category:
Athletes Passed
4030
Passed By
1355
Net Change
+2675
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20291
5K → 10K106659-553#20291#20844
10K → 15K72636-564#20844#21408
15K → 20K6964+692#21408#20716
20K → Half657+58#20716#20658
Half → 25K3887+381#20658#20277
25K → 30K9253+922#20277#19355
30K → 20M3220+322#19355#19033
20M → 21M3730+373#19033#18660
21M → 35K1178+109#18660#18551
35K → 23M3371+336#18551#18215
23M → 24M1826+176#18215#18039
24M → 40K14513+132#18039#17907
40K → 25.2M783+75#17907#17832
25.2M → Finish2248+216#17832#17616
TOTALS40301355+2675
📊

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