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BOSTON MARATHON 2025

Nataliia Lavrenova

Bib: 15726•F

ON

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 26%
Gender (Female)
#0 / 12228
Top 9%
Masters (Masters Women)
#0 / 6759
Top 3%
Division (F40-44)
#0 / 1718
Top 6%
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
7:08/mi
22:10
↑ 97↓ 3451.5%
10K· 6.21 mi
7:11/mi
44:28
↑ 79↓ 1380.4%
15K· 9.32 mi
7:03/mi
1:06:23
↑ 67↓ 78
20K· 12.43 mi
7:07/mi
1:28:31
↑ 106↓ 860.1%
Half· 13.11 mi
7:04/mi
1:33:20
↑ 19↓ 370.5%
25K· 15.53 mi
7:11/mi
1:50:46
↑ 66↓ 880.2%
30K· 18.64 mi
7:27/mi
2:13:56
↑ 181↓ 1480.2%
20M
7:38/mi
2:24:18
↑ 64↓ 500.2%
21M
8:10/mi
2:32:28
↑ 106↓ 241.6%
35K· 21.75 mi
7:24/mi
2:38:00
↑ 17↓ 861.7%
23M
7:33/mi
2:47:27
↑ 23↓ 630.6%
24M
7:02/mi
2:54:29
↓ 821.3%
40K· 24.85 mi
7:13/mi
3:00:39
↓ 200.3%
25.2M
8:13/mi
3:03:29
↑ 13↓ 160.2%
Finish· 26.22 mi
7:21/mi
3:10:58
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:33:20
Pace7:07 /mi
2nd Half
Distance13.11 mi
Time1:37:38
Pace7:27 /mi
📊Positive Split: 4.6% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:54:2922:107:0822:10
7:08
-
10K
6.21 mi11:16:4744:287:0922:18
7:11
+0:03
15K
9.32 mi11:38:421:06:237:0721:55
7:03
-0:08
20K
12.43 mi12:00:501:28:317:0722:08
7:07
+0:04
Half
13.11 mi12:05:391:33:207:074:49
7:04
-0:03
25K
15.53 mi12:23:051:50:467:0817:26
7:11
+0:07
30K
18.64 mi12:46:152:13:567:1123:10
7:27
+0:16
20M
20.00 mi12:56:372:24:187:1310:22
7:38
+0:11
21M
21.00 mi13:04:472:32:287:168:10
8:10
+0:32
35K
21.75 mi13:10:192:38:007:165:32
7:24
-0:46
23M
23.00 mi13:19:462:47:277:179:27
7:33
+0:09
24M
24.00 mi13:26:482:54:297:167:02
7:02
-0:31
40K
24.85 mi13:32:583:00:397:166:10
7:13
+0:11
25.2M
25.20 mi13:35:483:03:297:172:50
8:13
+1:00
Finish
26.22 mi13:43:173:10:587:177:29
7:21
-0:52

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

7:02 /mi

Average Pace

7:17 /mi

Slowest Pace

8:13 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:59:58

94% of race

Time at Steady Pace

11:00

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:17 /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 mi10:54:2922:107:0822:10
7:08
#8936
10K
6.21 mi11:16:4744:287:0922:18
7:11
#9092
15K
9.32 mi11:38:421:06:237:0721:55
7:03
#8681
20K
12.43 mi12:00:501:28:317:0722:08
7:07
#8333
Half
13.11 mi12:05:391:33:207:074:49
7:04
#8302
25K
15.53 mi12:23:051:50:467:0817:26
7:11
#8150
30K
18.64 mi12:46:152:13:567:1123:10
7:27
#7930
20M
20.00 mi12:56:372:24:187:1310:22
7:38
#7867
21M
21.00 mi13:04:472:32:287:168:10
8:10
#7827
35K
21.75 mi13:10:192:38:007:165:32
7:24
#7790
23M
23.00 mi13:19:462:47:277:179:27
7:33
#7674
24M
24.00 mi13:26:482:54:297:167:02
7:02
#7493
40K
24.85 mi13:32:583:00:397:166:10
7:13
#7339
25.2M
25.20 mi13:35:483:03:297:172:50
8:13
#7324
Finish
26.22 mi13:43:173:10:587:177:29
7:21
#7324
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi8936134513458005(Top 28%)1042(Top 9%)1042(Top 61%)
10K6.21 mi3.10 mi9092-1561415-701415-709301(Top 33%)1510(Top 12%)1510(Top 88%)
15K9.32 mi3.11 mi8681+4111262+1531262+1538005(Top 28%)1042(Top 9%)1042(Top 61%)
20K12.43 mi3.11 mi8333+3481158+1041158+1047673(Top 27%)993(Top 8%)993(Top 58%)
Half13.11 mi0.68 mi8302+311149+91149+98063(Top 28%)1107(Top 9%)1107(Top 64%)
25K15.53 mi2.42 mi8150+1521113+361113+367552(Top 27%)1060(Top 9%)1060(Top 62%)
30K18.64 mi3.11 mi7930+2201082+311082+317443(Top 26%)1180(Top 10%)1180(Top 69%)
20M20.00 mi1.36 mi7867+631092-101092-107907(Top 28%)1499(Top 12%)1499(Top 87%)
21M21.00 mi1.00 mi7827+401109-171109-178389(Top 30%)1885(Top 15%)1885(Top 110%)
35K21.75 mi0.75 mi7790+371120-111120-117918(Top 28%)1635(Top 13%)1635(Top 95%)
23M23.00 mi1.25 mi7674+1161123-31123-36914(Top 24%)1352(Top 11%)1352(Top 79%)
24M24.00 mi1.00 mi7493+1811093+301093+304856(Top 17%)689(Top 6%)689(Top 40%)
40K24.85 mi0.85 mi7339+1541065+281065+285155(Top 18%)838(Top 7%)838(Top 49%)
25.2M25.20 mi0.35 mi7324+151071-61071-67192(Top 25%)1708(Top 14%)1708(Top 99%)
Finish26.22 mi1.02 mi73241099-281099-288091(Top 28%)2099(Top 17%)2099(Top 122%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 28%
×21story building
+97ft-345ft

Overall

8005

Females

1042

F40-44

1042

5K→10K

3.1 - 6.2 mi

Top 33%
×5story building
+79ft-138ft

Overall

9301

Females

1510

F40-44

1510

10K→15K

6.2 - 9.3 mi

Top 28%
×3story building
+67ft-78ft

Overall

8005

Females

1042

F40-44

1042

15K→20K

9.3 - 12.4 mi

Top 27%
×5story building
+106ft-86ft

Overall

7673

Females

993

F40-44

993

20K→Half

12.4 - 13.1 mi

Top 28%
×2story building
+19ft-37ft

Overall

8063

Females

1107

F40-44

1107

Half→25K

13.1 - 15.5 mi

Top 27%
×4story building
+66ft-88ft

Overall

7552

Females

1060

F40-44

1060

25K→30K

15.5 - 18.6 mi

Top 26%
×9story building
+181ft-148ft

Overall

7443

Females

1180

F40-44

1180

30K→20M

18.6 - 20.0 mi

Top 28%
×5story building
+64ft-50ft

Overall

7907

Females

1499

F40-44

1499

20M→21M

20.0 - 21.0 mi

Top 30%
×8story building
+106ft-24ft

Overall

8389

Females

1885

F40-44

1885

21M→35K

21.0 - 21.8 mi

Top 28%
×7story building
+17ft-86ft

Overall

7918

Females

1635

F40-44

1635

35K→23M

21.8 - 23.0 mi

Top 24%
×5story building
+23ft-63ft

Overall

6914

Females

1352

F40-44

1352

23M→24M

23.0 - 24.0 mi

Top 17%
×6story building
+12ft-82ft

Overall

4856

Females

689

F40-44

689

24M→40K

24.0 - 24.9 mi

Top 18%
×1story
+6ft-20ft

Overall

5155

Females

838

F40-44

838

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

7192

Females

1708

F40-44

1708

25.2M→Finish

25.2 - 26.2 mi

Top 28%
×2story building
+22ft-21ft

Overall

8091

Females

2099

F40-44

2099

Passing Analysis

Category:
Athletes Passed
2412
Passed By
800
Net Change
+1612
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#8936
5K → 10K155311-156#8936#9092
10K → 15K43423+411#9092#8681
15K → 20K37729+348#8681#8333
20K → Half4514+31#8333#8302
Half → 25K20957+152#8302#8150
25K → 30K28868+220#8150#7930
30K → 20M12158+63#7930#7867
20M → 21M11575+40#7867#7827
21M → 35K7740+37#7827#7790
35K → 23M15236+116#7790#7674
23M → 24M1865+181#7674#7493
24M → 40K16410+154#7493#7339
40K → 25.2M3520+15#7339#7324
25.2M → Finish54540#7324#7324
TOTALS2412800+1612
📊

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