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BOSTON MARATHON 2025

Kristina Mercado

Bib: 31973•F

NV

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
29:54
Rank: #24610
Start → 5K
29:54 | 9:37/mi
10K· 6.21 mi
1:00:05
Rank: #24658 (-48)
5K → 10K
30:11 | 9:43/mi
15K· 9.32 mi
1:30:04
Rank: #24471 (+187)
10K → 15K
29:59 | 9:39/mi
20K· 12.43 mi
2:01:56
Rank: #24562 (-91)
15K → 20K
31:52 | 10:15/mi
Half· 13.11 mi
2:08:53
Rank: #24600 (-38)
20K → Half
6:57 | 10:11/mi
25K· 15.53 mi
2:35:05
Rank: #24680 (-80)
Half → 25K
26:12 | 10:48/mi
30K· 18.64 mi
3:12:07
Rank: #24879 (-199)
25K → 30K
37:02 | 11:55/mi
20M
3:28:00
Rank: #24885 (-6)
30K → 20M
15:53 | 11:41/mi
21M
3:41:39
Rank: #24975 (-90)
20M → 21M
13:39 | 13:39/mi
35K· 21.75 mi
3:50:24
Rank: #25008 (-33)
21M → 35K
8:45 | 11:42/mi
23M
4:05:30
Rank: #25030 (-22)
35K → 23M
15:06 | 12:04/mi
24M
4:17:06
Rank: #25037 (-7)
23M → 24M
11:36 | 11:36/mi
40K· 24.85 mi
4:27:19
Rank: #25024 (+13)
24M → 40K
10:13 | 11:57/mi
25.2M
4:31:47
Rank: #25024
40K → 25.2M
4:28 | 12:57/mi
Finish· 26.22 mi
4:43:09
Rank: #25058 (-34)
25.2M → Finish
11:22 | 11:09/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:08:53
Pace9:50 /mi
2nd Half
Distance13.11 mi
Time2:34:16
Pace11:46 /mi
📊Positive Split: 19.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:50:5429:549:3729:54
9:37
-
10K
6.21 mi12:21:051:00:059:4030:11
9:43
+0:06
15K
9.32 mi12:51:041:30:049:4029:59
9:39
-0:04
20K
12.43 mi13:22:562:01:569:4931:52
10:15
+0:36
Half
13.11 mi13:29:532:08:539:506:57
10:11
-0:04
25K
15.53 mi13:56:052:35:059:5926:12
10:48
+0:37
30K
18.64 mi14:33:073:12:0710:1837:02
11:55
+1:07
20M
20.00 mi14:49:003:28:0010:2415:53
11:41
-0:14
21M
21.00 mi15:02:393:41:3910:3313:39
13:39
+1:58
35K
21.75 mi15:11:243:50:2410:368:45
11:42
-1:57
23M
23.00 mi15:26:304:05:3010:4015:06
12:04
+0:22
24M
24.00 mi15:38:064:17:0610:4311:36
11:36
-0:28
40K
24.85 mi15:48:194:27:1910:4510:13
11:57
+0:21
25.2M
25.20 mi15:52:474:31:4710:474:28
12:57
+1:00
Finish
26.22 mi16:04:094:43:0910:4811:22
11:09
-1:48

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

9:37 /mi

Average Pace

10:48 /mi

Slowest Pace

13:39 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:35:05

55% of race

Time at Steady Pace

1:49:57

39% of race

Time at Slower Pace

18:07

6% of race

Average Pace: 10:48 /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 mi11:50:5429:549:3729:54
9:37
#24610
10K
6.21 mi12:21:051:00:059:4030:11
9:43
#24658
15K
9.32 mi12:51:041:30:049:4029:59
9:39
#24471
20K
12.43 mi13:22:562:01:569:4931:52
10:15
#24562
Half
13.11 mi13:29:532:08:539:506:57
10:11
#24600
25K
15.53 mi13:56:052:35:059:5926:12
10:48
#24680
30K
18.64 mi14:33:073:12:0710:1837:02
11:55
#24879
20M
20.00 mi14:49:003:28:0010:2415:53
11:41
#24885
21M
21.00 mi15:02:393:41:3910:3313:39
13:39
#24975
35K
21.75 mi15:11:243:50:2410:368:45
11:42
#25008
23M
23.00 mi15:26:304:05:3010:4015:06
12:04
#25030
24M
24.00 mi15:38:064:17:0610:4311:36
11:36
#25037
40K
24.85 mi15:48:194:27:1910:4510:13
11:57
#25024
25.2M
25.20 mi15:52:474:31:4710:474:28
12:57
#25024
Finish
26.22 mi16:04:094:43:0910:4811:22
11:09
#25058
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi24610100141001424141(Top 85%)9751(Top 80%)9751(Top 538%)
10K6.21 mi3.10 mi24658-4810038-2410038-2424651(Top 87%)10048(Top 82%)10048(Top 554%)
15K9.32 mi3.11 mi24471+1879944+949944+9424141(Top 85%)9751(Top 80%)9751(Top 538%)
20K12.43 mi3.11 mi24562-9110007-6310007-6324751(Top 87%)10128(Top 83%)10128(Top 559%)
Half13.11 mi0.68 mi24600-3810026-1910026-1925206(Top 89%)10381(Top 85%)10381(Top 573%)
25K15.53 mi2.42 mi24680-8010076-5010076-5024907(Top 88%)10234(Top 84%)10234(Top 564%)
30K18.64 mi3.11 mi24879-19910212-13610212-13625475(Top 90%)10659(Top 87%)10659(Top 588%)
20M20.00 mi1.36 mi24885-610233-2110233-2124830(Top 87%)10377(Top 85%)10377(Top 572%)
21M21.00 mi1.00 mi24975-9010294-6110294-6125813(Top 91%)10952(Top 90%)10952(Top 604%)
35K21.75 mi0.75 mi25008-3310318-2410318-2425373(Top 89%)10779(Top 88%)10779(Top 595%)
23M23.00 mi1.25 mi25030-2210345-2710345-2725196(Top 89%)10703(Top 88%)10703(Top 590%)
24M24.00 mi1.00 mi25037-710361-1610361-1625052(Top 88%)10657(Top 87%)10657(Top 588%)
40K24.85 mi0.85 mi25024+1310367-610367-624823(Top 87%)10591(Top 87%)10591(Top 584%)
25.2M25.20 mi0.35 mi2502410368-110368-124923(Top 88%)10645(Top 87%)10645(Top 587%)
Finish26.22 mi1.02 mi25058-3410390-2210390-2225621(Top 90%)10968(Top 90%)10968(Top 605%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 85%
×21stories
+97ft-345ft

Overall

24141

Females

9751

F45-49

9751

5K→10K

3.1 - 6.2 mi

Top 87%
×5stories
+79ft-138ft

Overall

24651

Females

10048

F45-49

10048

10K→15K

6.2 - 9.3 mi

Top 85%
×3stories
+67ft-78ft

Overall

24141

Females

9751

F45-49

9751

15K→20K

9.3 - 12.4 mi

Top 87%
×5stories
+106ft-86ft

Overall

24751

Females

10128

F45-49

10128

20K→Half

12.4 - 13.1 mi

Top 89%
×2stories
+19ft-37ft

Overall

25206

Females

10381

F45-49

10381

Half→25K

13.1 - 15.5 mi

Top 88%
×4stories
+66ft-88ft

Overall

24907

Females

10234

F45-49

10234

25K→30K

15.5 - 18.6 mi

Top 90%
×9stories
+181ft-148ft

Overall

25475

Females

10659

F45-49

10659

30K→20M

18.6 - 20.0 mi

Top 87%
×5stories
+64ft-50ft

Overall

24830

Females

10377

F45-49

10377

20M→21M

20.0 - 21.0 mi

Top 91%
×8stories
+106ft-24ft

Overall

25813

Females

10952

F45-49

10952

21M→35K

21.0 - 21.8 mi

Top 89%
×7stories
+17ft-86ft

Overall

25373

Females

10779

F45-49

10779

35K→23M

21.8 - 23.0 mi

Top 89%
×5stories
+23ft-63ft

Overall

25196

Females

10703

F45-49

10703

23M→24M

23.0 - 24.0 mi

Top 88%
×6stories
+12ft-82ft

Overall

25052

Females

10657

F45-49

10657

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

24823

Females

10591

F45-49

10591

40K→25.2M

24.9 - 25.2 mi

Top 88%
×1story
+13ft-16ft

Overall

24923

Females

10645

F45-49

10645

25.2M→Finish

25.2 - 26.2 mi

Top 90%
×2stories
+22ft-21ft

Overall

25621

Females

10968

F45-49

10968

Passing Analysis

Category:
Athletes Passed
931
Passed By
1379
Net Change
-448
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#24610
5K → 10K182230-48#24610#24658
10K → 15K24356+187#24658#24471
15K → 20K112203-91#24471#24562
20K → Half1250-38#24562#24600
Half → 25K79159-80#24600#24680
25K → 30K73272-199#24680#24879
30K → 20M5763-6#24879#24885
20M → 21M21111-90#24885#24975
21M → 35K1548-33#24975#25008
35K → 23M3860-22#25008#25030
23M → 24M3138-7#25030#25037
24M → 40K4128+13#25037#25024
40K → 25.2M17170#25024#25024
25.2M → Finish1044-34#25024#25058
TOTALS9311379-448
📊

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