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BOSTON MARATHON 2025

Marina Kagan

Bib: 20445•F

CA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
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
9:15/mi
28:43
↑ 97↓ 3451.5%
10K· 6.21 mi
10:16/mi
1:00:37
↑ 79↓ 1380.4%
15K· 9.32 mi
10:06/mi
1:32:00
↑ 67↓ 78
20K· 12.43 mi
10:21/mi
2:04:08
↑ 106↓ 860.1%
Half· 13.11 mi
9:33/mi
2:10:39
↑ 19↓ 370.5%
25K· 15.53 mi
10:37/mi
2:36:24
↑ 66↓ 880.2%
30K· 18.64 mi
11:51/mi
3:13:14
↑ 181↓ 1480.2%
20M
10:57/mi
3:28:07
↑ 64↓ 500.2%
21M
12:52/mi
3:40:59
↑ 106↓ 241.6%
35K· 21.75 mi
9:43/mi
3:48:15
↑ 17↓ 861.7%
23M
9:29/mi
4:00:08
↑ 23↓ 630.6%
24M
9:39/mi
4:09:47
↓ 821.3%
40K· 24.85 mi
9:38/mi
4:18:01
↓ 200.3%
25.2M
10:35/mi
4:21:40
↑ 13↓ 160.2%
Finish· 26.22 mi
9:31/mi
4:31:22
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:10:39
Pace9:58 /mi
2nd Half
Distance13.11 mi
Time2:20:43
Pace10:44 /mi
📊Positive Split: 7.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:23:3928:439:1528:43
9:15
-
10K
6.21 mi11:55:331:00:379:4531:54
10:16
+1:01
15K
9.32 mi12:26:561:32:009:5231:23
10:06
-0:10
20K
12.43 mi12:59:042:04:089:5932:08
10:21
+0:15
Half
13.11 mi13:05:352:10:399:586:31
9:33
-0:48
25K
15.53 mi13:31:202:36:2410:0425:45
10:37
+1:04
30K
18.64 mi14:08:103:13:1410:2236:50
11:51
+1:14
20M
20.00 mi14:23:033:28:0710:2414:53
10:57
-0:54
21M
21.00 mi14:35:553:40:5910:3112:52
12:52
+1:55
35K
21.75 mi14:43:113:48:1510:307:16
9:43
-3:09
23M
23.00 mi14:55:044:00:0810:2611:53
9:29
-0:14
24M
24.00 mi15:04:434:09:4710:249:39
9:39
+0:10
40K
24.85 mi15:12:574:18:0110:238:14
9:38
-0:01
25.2M
25.20 mi15:16:364:21:4010:233:39
10:35
+0:57
Finish
26.22 mi15:26:184:31:2210:219:42
9:31
-1:04

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

9:15 /mi

Average Pace

10:21 /mi

Slowest Pace

12:52 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

56:49

21% of race

Time at Steady Pace

2:00:34

44% of race

Time at Slower Pace

1:33:59

35% of race

Average Pace: 10:21 /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 mi11:23:3928:439:1528:43
9:15
#23379
10K
6.21 mi11:55:331:00:379:4531:54
10:16
#24872
15K
9.32 mi12:26:561:32:009:5231:23
10:06
#24979
20K
12.43 mi12:59:042:04:089:5932:08
10:21
#24994
Half
13.11 mi13:05:352:10:399:586:31
9:33
#24917
25K
15.53 mi13:31:202:36:2410:0425:45
10:37
#24863
30K
18.64 mi14:08:103:13:1410:2236:50
11:51
#25002
20M
20.00 mi14:23:033:28:0710:2414:53
10:57
#24890
21M
21.00 mi14:35:553:40:5910:3112:52
12:52
#24909
35K
21.75 mi14:43:113:48:1510:307:16
9:43
#24802
23M
23.00 mi14:55:044:00:0810:2611:53
9:29
#24577
24M
24.00 mi15:04:434:09:4710:249:39
9:39
#24435
40K
24.85 mi15:12:574:18:0110:238:14
9:38
#24273
25.2M
25.20 mi15:16:364:21:4010:233:39
10:35
#24215
Finish
26.22 mi15:26:184:31:2210:219:42
9:31
#24134
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi233799378937825213(Top 89%)10346(Top 85%)10346(Top 602%)
10K6.21 mi3.10 mi24872-149310160-78210160-78225862(Top 91%)10717(Top 88%)10717(Top 624%)
15K9.32 mi3.11 mi24979-10710208-4810208-4825213(Top 89%)10346(Top 85%)10346(Top 602%)
20K12.43 mi3.11 mi24994-1510229-2110229-2124909(Top 88%)10208(Top 83%)10208(Top 594%)
Half13.11 mi0.68 mi24917+7710192+3710192+3723749(Top 84%)9572(Top 78%)9572(Top 557%)
25K15.53 mi2.42 mi24863+5410184+810184+824586(Top 87%)10065(Top 82%)10065(Top 586%)
30K18.64 mi3.11 mi25002-13910279-9510279-9525393(Top 89%)10613(Top 87%)10613(Top 618%)
20M20.00 mi1.36 mi24890+11210237+4210237+4223508(Top 83%)9688(Top 79%)9688(Top 564%)
21M21.00 mi1.00 mi24909-1910255-1810255-1824890(Top 88%)10509(Top 86%)10509(Top 612%)
35K21.75 mi0.75 mi24802+10710204+5110204+5121080(Top 74%)8555(Top 70%)8555(Top 498%)
23M23.00 mi1.25 mi24577+22510105+9910105+9918698(Top 66%)7358(Top 60%)7358(Top 428%)
24M24.00 mi1.00 mi24435+14210034+7110034+7120231(Top 71%)8215(Top 67%)8215(Top 478%)
40K24.85 mi0.85 mi24273+1629961+739961+7319245(Top 68%)7765(Top 64%)7765(Top 452%)
25.2M25.20 mi0.35 mi24215+589943+189943+1819376(Top 68%)7864(Top 64%)7864(Top 458%)
Finish26.22 mi1.02 mi24134+819905+389905+3821263(Top 75%)8801(Top 72%)8801(Top 512%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 89%
×21story building
+97ft-345ft

Overall

25213

Females

10346

F40-44

10346

5K→10K

3.1 - 6.2 mi

Top 91%
×5story building
+79ft-138ft

Overall

25862

Females

10717

F40-44

10717

10K→15K

6.2 - 9.3 mi

Top 89%
×3story building
+67ft-78ft

Overall

25213

Females

10346

F40-44

10346

15K→20K

9.3 - 12.4 mi

Top 88%
×5story building
+106ft-86ft

Overall

24909

Females

10208

F40-44

10208

20K→Half

12.4 - 13.1 mi

Top 84%
×2story building
+19ft-37ft

Overall

23749

Females

9572

F40-44

9572

Half→25K

13.1 - 15.5 mi

Top 87%
×4story building
+66ft-88ft

Overall

24586

Females

10065

F40-44

10065

25K→30K

15.5 - 18.6 mi

Top 89%
×9story building
+181ft-148ft

Overall

25393

Females

10613

F40-44

10613

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

23508

Females

9688

F40-44

9688

20M→21M

20.0 - 21.0 mi

Top 88%
×8story building
+106ft-24ft

Overall

24890

Females

10509

F40-44

10509

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

21080

Females

8555

F40-44

8555

35K→23M

21.8 - 23.0 mi

Top 66%
×5story building
+23ft-63ft

Overall

18698

Females

7358

F40-44

7358

23M→24M

23.0 - 24.0 mi

Top 71%
×6story building
+12ft-82ft

Overall

20231

Females

8215

F40-44

8215

24M→40K

24.0 - 24.9 mi

Top 68%
×1story
+6ft-20ft

Overall

19245

Females

7765

F40-44

7765

40K→25.2M

24.9 - 25.2 mi

Top 68%
×1story
+13ft-16ft

Overall

19376

Females

7864

F40-44

7864

25.2M→Finish

25.2 - 26.2 mi

Top 75%
×2story building
+22ft-21ft

Overall

21263

Females

8801

F40-44

8801

Passing Analysis

Category:
Athletes Passed
1478
Passed By
2233
Net Change
-755
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#23379
5K → 10K181511-1493#23379#24872
10K → 15K88195-107#24872#24979
15K → 20K134149-15#24979#24994
20K → Half792+77#24994#24917
Half → 25K12571+54#24917#24863
25K → 30K80219-139#24863#25002
30K → 20M12210+112#25002#24890
20M → 21M4463-19#24890#24909
21M → 35K1092+107#24909#24802
35K → 23M2261+225#24802#24577
23M → 24M1453+142#24577#24435
24M → 40K1620+162#24435#24273
40K → 25.2M580+58#24273#24215
25.2M → Finish887+81#24215#24134
TOTALS14782233-755
📊

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