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BOSTON MARATHON 2025

Karen Gurian

Bib: 27463•F

MA

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
28:11
Rank: #22740
Start → 5K
28:11 | 9:04/mi
10K· 6.21 mi
54:55
Rank: #21657 (+1083)
5K → 10K
26:44 | 8:36/mi
15K· 9.32 mi
1:22:41
Rank: #21665 (-8)
10K → 15K
27:46 | 8:56/mi
20K· 12.43 mi
1:52:36
Rank: #22209 (-544)
15K → 20K
29:55 | 9:38/mi
Half· 13.11 mi
1:59:13
Rank: #22320 (-111)
20K → Half
6:37 | 9:42/mi
25K· 15.53 mi
2:26:35
Rank: #23231 (-911)
Half → 25K
27:22 | 11:17/mi
30K· 18.64 mi
3:02:00
Rank: #23566 (-335)
25K → 30K
35:25 | 11:24/mi
20M
3:17:08
Rank: #23604 (-38)
30K → 20M
15:08 | 11:08/mi
21M
3:28:47
Rank: #23562 (+42)
20M → 21M
11:39 | 11:39/mi
35K· 21.75 mi
3:37:20
Rank: #23644 (-82)
21M → 35K
8:33 | 11:26/mi
23M
3:51:51
Rank: #23696 (-52)
35K → 23M
14:31 | 11:36/mi
24M
4:02:42
Rank: #23704 (-8)
23M → 24M
10:51 | 10:51/mi
40K· 24.85 mi
4:12:36
Rank: #23725 (-21)
24M → 40K
9:54 | 11:35/mi
25.2M
4:16:39
Rank: #23722 (+3)
40K → 25.2M
4:03 | 11:45/mi
Finish· 26.22 mi
4:26:25
Rank: #23640 (+82)
25.2M → Finish
9:46 | 9:35/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:59:13
Pace9:06 /mi
2nd Half
Distance13.11 mi
Time2:27:12
Pace11:14 /mi
📊Positive Split: 23.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:44:0928:119:0428:11
9:04
-
10K
6.21 mi12:10:5354:558:5026:44
8:36
-0:28
15K
9.32 mi12:38:391:22:418:5227:46
8:56
+0:20
20K
12.43 mi13:08:341:52:369:0429:55
9:38
+0:42
Half
13.11 mi13:15:111:59:139:066:37
9:42
+0:04
25K
15.53 mi13:42:332:26:359:2627:22
11:17
+1:35
30K
18.64 mi14:17:583:02:009:4635:25
11:24
+0:07
20M
20.00 mi14:33:063:17:089:5115:08
11:08
-0:16
21M
21.00 mi14:44:453:28:479:5711:39
11:39
+0:31
35K
21.75 mi14:53:183:37:2010:008:33
11:26
-0:13
23M
23.00 mi15:07:493:51:5110:0514:31
11:36
+0:10
24M
24.00 mi15:18:404:02:4210:0710:51
10:51
-0:45
40K
24.85 mi15:28:344:12:3610:109:54
11:35
+0:44
25.2M
25.20 mi15:32:374:16:3910:114:03
11:45
+0:10
Finish
26.22 mi15:42:234:26:2510:109:46
9:35
-2:10

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

8:36 /mi

Average Pace

10:10 /mi

Slowest Pace

11:45 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:08:59

48% of race

Time at Steady Pace

2:13:23

50% of race

Time at Slower Pace

4:03

2% of race

Average Pace: 10:10 /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 mi11:44:0928:119:0428:11
9:04
#22740
10K
6.21 mi12:10:5354:558:5026:44
8:36
#21657
15K
9.32 mi12:38:391:22:418:5227:46
8:56
#21665
20K
12.43 mi13:08:341:52:369:0429:55
9:38
#22209
Half
13.11 mi13:15:111:59:139:066:37
9:42
#22320
25K
15.53 mi13:42:332:26:359:2627:22
11:17
#23231
30K
18.64 mi14:17:583:02:009:4635:25
11:24
#23566
20M
20.00 mi14:33:063:17:089:5115:08
11:08
#23604
21M
21.00 mi14:44:453:28:479:5711:39
11:39
#23562
35K
21.75 mi14:53:183:37:2010:008:33
11:26
#23644
23M
23.00 mi15:07:493:51:5110:0514:31
11:36
#23696
24M
24.00 mi15:18:404:02:4210:0710:51
10:51
#23704
40K
24.85 mi15:28:344:12:3610:109:54
11:35
#23725
25.2M
25.20 mi15:32:374:16:3910:114:03
11:45
#23722
Finish
26.22 mi15:42:234:26:2510:109:46
9:35
#23640
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi227409039903921755(Top 77%)8413(Top 69%)8413(Top 464%)
10K6.21 mi3.10 mi21657+10838420+6198420+61920389(Top 72%)7684(Top 63%)7684(Top 424%)
15K9.32 mi3.11 mi21665-88409+118409+1121755(Top 77%)8413(Top 69%)8413(Top 464%)
20K12.43 mi3.11 mi22209-5448707-2988707-29823306(Top 82%)9308(Top 76%)9308(Top 513%)
Half13.11 mi0.68 mi22320-1118777-708777-7024120(Top 85%)9771(Top 80%)9771(Top 539%)
25K15.53 mi2.42 mi23231-9119258-4819258-48125602(Top 90%)10632(Top 87%)10632(Top 586%)
30K18.64 mi3.11 mi23566-3359491-2339491-23324701(Top 87%)10238(Top 84%)10238(Top 565%)
20M20.00 mi1.36 mi23604-389542-519542-5123868(Top 84%)9886(Top 81%)9886(Top 545%)
21M21.00 mi1.00 mi23562+429533+99533+922932(Top 81%)9464(Top 77%)9464(Top 522%)
35K21.75 mi0.75 mi23644-829586-539586-5324999(Top 88%)10582(Top 87%)10582(Top 584%)
23M23.00 mi1.25 mi23696-529634-489634-4824412(Top 86%)10303(Top 84%)10303(Top 568%)
24M24.00 mi1.00 mi23704-89653-199653-1923682(Top 83%)9969(Top 82%)9969(Top 550%)
40K24.85 mi0.85 mi23725-219681-289681-2824275(Top 85%)10307(Top 84%)10307(Top 569%)
25.2M25.20 mi0.35 mi23722+39683-29683-222700(Top 80%)9518(Top 78%)9518(Top 525%)
Finish26.22 mi1.02 mi23640+829661+229661+2221517(Top 76%)8924(Top 73%)8924(Top 492%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 77%
×21stories
+97ft-345ft

Overall

21755

Females

8413

F45-49

8413

5K→10K

3.1 - 6.2 mi

Top 72%
×5stories
+79ft-138ft

Overall

20389

Females

7684

F45-49

7684

10K→15K

6.2 - 9.3 mi

Top 77%
×3stories
+67ft-78ft

Overall

21755

Females

8413

F45-49

8413

15K→20K

9.3 - 12.4 mi

Top 82%
×5stories
+106ft-86ft

Overall

23306

Females

9308

F45-49

9308

20K→Half

12.4 - 13.1 mi

Top 85%
×2stories
+19ft-37ft

Overall

24120

Females

9771

F45-49

9771

Half→25K

13.1 - 15.5 mi

Top 90%
×4stories
+66ft-88ft

Overall

25602

Females

10632

F45-49

10632

25K→30K

15.5 - 18.6 mi

Top 87%
×9stories
+181ft-148ft

Overall

24701

Females

10238

F45-49

10238

30K→20M

18.6 - 20.0 mi

Top 84%
×5stories
+64ft-50ft

Overall

23868

Females

9886

F45-49

9886

20M→21M

20.0 - 21.0 mi

Top 81%
×8stories
+106ft-24ft

Overall

22932

Females

9464

F45-49

9464

21M→35K

21.0 - 21.8 mi

Top 88%
×7stories
+17ft-86ft

Overall

24999

Females

10582

F45-49

10582

35K→23M

21.8 - 23.0 mi

Top 86%
×5stories
+23ft-63ft

Overall

24412

Females

10303

F45-49

10303

23M→24M

23.0 - 24.0 mi

Top 83%
×6stories
+12ft-82ft

Overall

23682

Females

9969

F45-49

9969

24M→40K

24.0 - 24.9 mi

Top 85%
×1story
+6ft-20ft

Overall

24275

Females

10307

F45-49

10307

40K→25.2M

24.9 - 25.2 mi

Top 80%
×1story
+13ft-16ft

Overall

22700

Females

9518

F45-49

9518

25.2M→Finish

25.2 - 26.2 mi

Top 76%
×2stories
+22ft-21ft

Overall

21517

Females

8924

F45-49

8924

Passing Analysis

Category:
Athletes Passed
1877
Passed By
2777
Net Change
-900
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22740
5K → 10K110421+1083#22740#21657
10K → 15K206214-8#21657#21665
15K → 20K68612-544#21665#22209
20K → Half8119-111#22209#22320
Half → 25K11922-911#22320#23231
25K → 30K66401-335#23231#23566
30K → 20M64102-38#23566#23604
20M → 21M9149+42#23604#23562
21M → 35K27109-82#23562#23644
35K → 23M52104-52#23644#23696
23M → 24M4452-8#23696#23704
24M → 40K3152-21#23704#23725
40K → 25.2M118+3#23725#23722
25.2M → Finish9412+82#23722#23640
TOTALS18772777-900
📊

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