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BOSTON MARATHON 2025

Gretchen Barros

Bib: 22378•F

WA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
25:25
Rank: #17999
Start → 5K
25:25 | 8:11/mi
10K· 6.21 mi
51:30
Rank: #18539 (-540)
5K → 10K
26:05 | 8:24/mi
15K· 9.32 mi
1:18:18
Rank: #19033 (-494)
10K → 15K
26:48 | 8:38/mi
20K· 12.43 mi
1:46:30
Rank: #19709 (-676)
15K → 20K
28:12 | 9:05/mi
Half· 13.11 mi
1:52:18
Rank: #19688 (+21)
20K → Half
5:48 | 8:30/mi
25K· 15.53 mi
2:14:54
Rank: #19968 (-280)
Half → 25K
22:36 | 9:19/mi
30K· 18.64 mi
2:46:20
Rank: #20493 (-525)
25K → 30K
31:26 | 10:07/mi
20M
3:00:01
Rank: #20562 (-69)
30K → 20M
13:41 | 10:04/mi
21M
3:10:50
Rank: #20593 (-31)
20M → 21M
10:49 | 10:49/mi
35K· 21.75 mi
3:17:50
Rank: #20562 (+31)
21M → 35K
7:00 | 9:21/mi
23M
3:30:03
Rank: #20521 (+41)
35K → 23M
12:13 | 9:45/mi
24M
3:39:47
Rank: #20542 (-21)
23M → 24M
9:44 | 9:44/mi
40K· 24.85 mi
3:48:05
Rank: #20516 (+26)
24M → 40K
8:18 | 9:42/mi
25.2M
3:51:36
Rank: #20497 (+19)
40K → 25.2M
3:31 | 10:12/mi
Finish· 26.22 mi
4:00:30
Rank: #20431 (+66)
25.2M → Finish
8:54 | 8:44/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:52:18
Pace8:34 /mi
2nd Half
Distance13.11 mi
Time2:08:12
Pace9:47 /mi
📊Positive Split: 14.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:21:2825:258:1125:25
8:11
-
10K
6.21 mi11:47:3351:308:1726:05
8:24
+0:13
15K
9.32 mi12:14:211:18:188:2426:48
8:38
+0:14
20K
12.43 mi12:42:331:46:308:3428:12
9:05
+0:27
Half
13.11 mi12:48:211:52:188:345:48
8:30
-0:35
25K
15.53 mi13:10:572:14:548:4122:36
9:19
+0:49
30K
18.64 mi13:42:232:46:208:5531:26
10:07
+0:48
20M
20.00 mi13:56:043:00:019:0013:41
10:04
-0:03
21M
21.00 mi14:06:533:10:509:0510:49
10:49
+0:45
35K
21.75 mi14:13:533:17:509:067:00
9:21
-1:28
23M
23.00 mi14:26:063:30:039:0812:13
9:45
+0:24
24M
24.00 mi14:35:503:39:479:099:44
9:44
-0:01
40K
24.85 mi14:44:083:48:059:118:18
9:42
-0:02
25.2M
25.20 mi14:47:393:51:369:113:31
10:12
+0:30
Finish
26.22 mi14:56:334:00:309:118:54
8:44
-1:28

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

8:11 /mi

Average Pace

9:11 /mi

Slowest Pace

10:49 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:33:00

39% of race

Time at Steady Pace

1:06:06

27% of race

Time at Slower Pace

1:21:24

34% of race

Average Pace: 9:10 /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 mi11:21:2825:258:1125:25
8:11
#17999
10K
6.21 mi11:47:3351:308:1726:05
8:24
#18539
15K
9.32 mi12:14:211:18:188:2426:48
8:38
#19033
20K
12.43 mi12:42:331:46:308:3428:12
9:05
#19709
Half
13.11 mi12:48:211:52:188:345:48
8:30
#19688
25K
15.53 mi13:10:572:14:548:4122:36
9:19
#19968
30K
18.64 mi13:42:232:46:208:5531:26
10:07
#20493
20M
20.00 mi13:56:043:00:019:0013:41
10:04
#20562
21M
21.00 mi14:06:533:10:509:0510:49
10:49
#20593
35K
21.75 mi14:13:533:17:509:067:00
9:21
#20562
23M
23.00 mi14:26:063:30:039:0812:13
9:45
#20521
24M
24.00 mi14:35:503:39:479:099:44
9:44
#20542
40K
24.85 mi14:44:083:48:059:118:18
9:42
#20516
25.2M
25.20 mi14:47:393:51:369:113:31
10:12
#20497
Finish
26.22 mi14:56:334:00:309:118:54
8:44
#20431
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi179996347634720078(Top 71%)7481(Top 61%)7481(Top 413%)
10K6.21 mi3.10 mi18539-5406638-2916638-29119178(Top 68%)6993(Top 57%)6993(Top 386%)
15K9.32 mi3.11 mi19033-4946933-2956933-29520078(Top 71%)7481(Top 61%)7481(Top 413%)
20K12.43 mi3.11 mi19709-6767307-3747307-37421355(Top 75%)8233(Top 67%)8233(Top 454%)
Half13.11 mi0.68 mi19688+217300+77300+719286(Top 68%)7077(Top 58%)7077(Top 390%)
25K15.53 mi2.42 mi19968-2807466-1667466-16621266(Top 75%)8242(Top 67%)8242(Top 455%)
30K18.64 mi3.11 mi20493-5257813-3477813-34721958(Top 77%)8755(Top 72%)8755(Top 483%)
20M20.00 mi1.36 mi20562-697862-497862-4921188(Top 75%)8463(Top 69%)8463(Top 467%)
21M21.00 mi1.00 mi20593-317903-417903-4120900(Top 74%)8397(Top 69%)8397(Top 463%)
35K21.75 mi0.75 mi20562+317898+57898+519818(Top 70%)7884(Top 64%)7884(Top 435%)
23M23.00 mi1.25 mi20521+417898789819660(Top 69%)7870(Top 64%)7870(Top 434%)
24M24.00 mi1.00 mi20542-217923-257923-2520511(Top 72%)8351(Top 68%)8351(Top 461%)
40K24.85 mi0.85 mi20516+267930-77930-719520(Top 69%)7903(Top 65%)7903(Top 436%)
25.2M25.20 mi0.35 mi20497+197926+47926+417952(Top 63%)7130(Top 58%)7130(Top 393%)
Finish26.22 mi1.02 mi20431+667907+197907+1917715(Top 62%)6940(Top 57%)6940(Top 383%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21stories
+97ft-345ft

Overall

20078

Females

7481

F45-49

7481

5K→10K

3.1 - 6.2 mi

Top 68%
×5stories
+79ft-138ft

Overall

19178

Females

6993

F45-49

6993

10K→15K

6.2 - 9.3 mi

Top 71%
×3stories
+67ft-78ft

Overall

20078

Females

7481

F45-49

7481

15K→20K

9.3 - 12.4 mi

Top 75%
×5stories
+106ft-86ft

Overall

21355

Females

8233

F45-49

8233

20K→Half

12.4 - 13.1 mi

Top 68%
×2stories
+19ft-37ft

Overall

19286

Females

7077

F45-49

7077

Half→25K

13.1 - 15.5 mi

Top 75%
×4stories
+66ft-88ft

Overall

21266

Females

8242

F45-49

8242

25K→30K

15.5 - 18.6 mi

Top 77%
×9stories
+181ft-148ft

Overall

21958

Females

8755

F45-49

8755

30K→20M

18.6 - 20.0 mi

Top 75%
×5stories
+64ft-50ft

Overall

21188

Females

8463

F45-49

8463

20M→21M

20.0 - 21.0 mi

Top 74%
×8stories
+106ft-24ft

Overall

20900

Females

8397

F45-49

8397

21M→35K

21.0 - 21.8 mi

Top 70%
×7stories
+17ft-86ft

Overall

19818

Females

7884

F45-49

7884

35K→23M

21.8 - 23.0 mi

Top 69%
×5stories
+23ft-63ft

Overall

19660

Females

7870

F45-49

7870

23M→24M

23.0 - 24.0 mi

Top 72%
×6stories
+12ft-82ft

Overall

20511

Females

8351

F45-49

8351

24M→40K

24.0 - 24.9 mi

Top 69%
×1story
+6ft-20ft

Overall

19520

Females

7903

F45-49

7903

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

17952

Females

7130

F45-49

7130

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2stories
+22ft-21ft

Overall

17715

Females

6940

F45-49

6940

Passing Analysis

Category:
Athletes Passed
1032
Passed By
3464
Net Change
-2432
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17999
5K → 10K109649-540#17999#18539
10K → 15K75569-494#18539#19033
15K → 20K55731-676#19033#19709
20K → Half4524+21#19709#19688
Half → 25K79359-280#19688#19968
25K → 30K106631-525#19968#20493
30K → 20M79148-69#20493#20562
20M → 21M83114-31#20562#20593
21M → 35K5928+31#20593#20562
35K → 23M10160+41#20562#20521
23M → 24M5172-21#20521#20542
24M → 40K6943+26#20542#20516
40K → 25.2M3415+19#20516#20497
25.2M → Finish8721+66#20497#20431
TOTALS10323464-2432
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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