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BOSTON MARATHON 2025

Elena Znova

Bib: 12870•F

MA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 34%
Gender (Female)
#0 / 12228
Top 17%
Masters (Masters Women)
#0 / 6759
Top 6%
Division (F45-49)
#0 / 1813
Top 7%
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
7:33/mi
23:27
↑ 97↓ 3451.5%
10K· 6.21 mi
7:32/mi
46:52
↑ 79↓ 1380.4%
15K· 9.32 mi
7:31/mi
1:10:14
↑ 67↓ 78
20K· 12.43 mi
7:33/mi
1:33:42
↑ 106↓ 860.1%
Half· 13.11 mi
7:34/mi
1:38:52
↑ 19↓ 370.5%
25K· 15.53 mi
7:34/mi
1:57:13
↑ 66↓ 880.2%
30K· 18.64 mi
7:34/mi
2:20:43
↑ 181↓ 1480.2%
20M
7:42/mi
2:31:11
↑ 64↓ 500.2%
21M
7:54/mi
2:39:05
↑ 106↓ 241.6%
35K· 21.75 mi
7:30/mi
2:44:42
↑ 17↓ 861.7%
23M
7:34/mi
2:54:10
↑ 23↓ 630.6%
24M
7:28/mi
3:01:38
↓ 821.3%
40K· 24.85 mi
7:36/mi
3:08:08
↓ 200.3%
25.2M
8:10/mi
3:10:57
↑ 13↓ 160.2%
Finish· 26.22 mi
7:24/mi
3:18:29
↑ 22↓ 21

The Course

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Half Splits

1st Half· via Half⚖️ Balanced
Distance13.11 mi
Time1:38:52
Pace7:32 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:39:37
Pace7:36 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:51:4823:277:3323:27
7:33
-
10K
6.21 mi11:15:1346:527:3323:25
7:32
-0:01
15K
9.32 mi11:38:351:10:147:3223:22
7:31
-0:01
20K
12.43 mi12:02:031:33:427:3223:28
7:33
+0:02
Half
13.11 mi12:07:131:38:527:325:10
7:34
+0:01
25K
15.53 mi12:25:341:57:137:3318:21
7:34
0:00
30K
18.64 mi12:49:042:20:437:3323:31
7:34
0:00
20M
20.00 mi12:59:322:31:117:3410:28
7:42
+0:08
21M
21.00 mi13:07:262:39:057:357:54
7:54
+0:12
35K
21.75 mi13:13:032:44:427:345:37
7:30
-0:24
23M
23.00 mi13:22:312:54:107:349:28
7:34
+0:04
24M
24.00 mi13:29:593:01:387:347:28
7:28
-0:06
40K
24.85 mi13:36:293:08:087:346:30
7:36
+0:08
25.2M
25.20 mi13:39:183:10:577:352:49
8:10
+0:34
Finish
26.22 mi13:46:503:18:297:357:32
7:24
-0:46

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

7:24 /mi

Average Pace

7:35 /mi

Slowest Pace

8:10 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:15:40

99% of race

Time at Steady Pace

2:49

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:34 /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 mi10:51:4823:277:3323:27
7:33
#12656
10K
6.21 mi11:15:1346:527:3323:25
7:32
#12506
15K
9.32 mi11:38:351:10:147:3223:22
7:31
#12292
20K
12.43 mi12:02:031:33:427:3223:28
7:33
#11994
Half
13.11 mi12:07:131:38:527:325:10
7:34
#11992
25K
15.53 mi12:25:341:57:137:3318:21
7:34
#11717
30K
18.64 mi12:49:042:20:437:3323:31
7:34
#11018
20M
20.00 mi12:59:322:31:117:3410:28
7:42
#10764
21M
21.00 mi13:07:262:39:057:357:54
7:54
#10491
35K
21.75 mi13:13:032:44:427:345:37
7:30
#10397
23M
23.00 mi13:22:312:54:107:349:28
7:34
#10123
24M
24.00 mi13:29:593:01:387:347:28
7:28
#9959
40K
24.85 mi13:36:293:08:087:346:30
7:36
#9821
25.2M
25.20 mi13:39:183:10:577:352:49
8:10
#9754
Finish
26.22 mi13:46:503:18:297:357:32
7:24
#9675
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi126563136313611950(Top 42%)2868(Top 23%)2868(Top 158%)
10K6.21 mi3.10 mi12506+1503072+643072+6412440(Top 44%)3053(Top 25%)3053(Top 168%)
15K9.32 mi3.11 mi12292+2142995+772995+7711950(Top 42%)2868(Top 23%)2868(Top 158%)
20K12.43 mi3.11 mi11994+2982864+1312864+13111201(Top 39%)2579(Top 21%)2579(Top 142%)
Half13.11 mi0.68 mi11992+22873-92873-912245(Top 43%)3106(Top 25%)3106(Top 171%)
25K15.53 mi2.42 mi11717+2752764+1092764+10910467(Top 37%)2319(Top 19%)2319(Top 128%)
30K18.64 mi3.11 mi11018+6992479+2852479+2858193(Top 29%)1475(Top 12%)1475(Top 81%)
20M20.00 mi1.36 mi10764+2542390+892390+898391(Top 30%)1712(Top 14%)1712(Top 94%)
21M21.00 mi1.00 mi10491+2732289+1012289+1016825(Top 24%)1240(Top 10%)1240(Top 68%)
35K21.75 mi0.75 mi10397+942261+282261+288720(Top 31%)1999(Top 16%)1999(Top 110%)
23M23.00 mi1.25 mi10123+2742165+962165+967029(Top 25%)1421(Top 12%)1421(Top 78%)
24M24.00 mi1.00 mi9959+1642120+452120+457506(Top 26%)1674(Top 14%)1674(Top 92%)
40K24.85 mi0.85 mi9821+1382093+272093+277475(Top 26%)1753(Top 14%)1753(Top 97%)
25.2M25.20 mi0.35 mi9754+672076+172076+176969(Top 25%)1641(Top 13%)1641(Top 91%)
Finish26.22 mi1.02 mi9675+792080-42080-48450(Top 30%)2261(Top 18%)2261(Top 125%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 42%
×21story building
+97ft-345ft

Overall

11950

Females

2868

F45-49

2868

5K→10K

3.1 - 6.2 mi

Top 44%
×5story building
+79ft-138ft

Overall

12440

Females

3053

F45-49

3053

10K→15K

6.2 - 9.3 mi

Top 42%
×3story building
+67ft-78ft

Overall

11950

Females

2868

F45-49

2868

15K→20K

9.3 - 12.4 mi

Top 39%
×5story building
+106ft-86ft

Overall

11201

Females

2579

F45-49

2579

20K→Half

12.4 - 13.1 mi

Top 43%
×2story building
+19ft-37ft

Overall

12245

Females

3106

F45-49

3106

Half→25K

13.1 - 15.5 mi

Top 37%
×4story building
+66ft-88ft

Overall

10467

Females

2319

F45-49

2319

25K→30K

15.5 - 18.6 mi

Top 29%
×9story building
+181ft-148ft

Overall

8193

Females

1475

F45-49

1475

30K→20M

18.6 - 20.0 mi

Top 30%
×5story building
+64ft-50ft

Overall

8391

Females

1712

F45-49

1712

20M→21M

20.0 - 21.0 mi

Top 24%
×8story building
+106ft-24ft

Overall

6825

Females

1240

F45-49

1240

21M→35K

21.0 - 21.8 mi

Top 31%
×7story building
+17ft-86ft

Overall

8720

Females

1999

F45-49

1999

35K→23M

21.8 - 23.0 mi

Top 25%
×5story building
+23ft-63ft

Overall

7029

Females

1421

F45-49

1421

23M→24M

23.0 - 24.0 mi

Top 26%
×6story building
+12ft-82ft

Overall

7506

Females

1674

F45-49

1674

24M→40K

24.0 - 24.9 mi

Top 26%
×1story
+6ft-20ft

Overall

7475

Females

1753

F45-49

1753

40K→25.2M

24.9 - 25.2 mi

Top 25%
×1story
+13ft-16ft

Overall

6969

Females

1641

F45-49

1641

25.2M→Finish

25.2 - 26.2 mi

Top 30%
×2story building
+22ft-21ft

Overall

8450

Females

2261

F45-49

2261

Passing Analysis

Category:
Athletes Passed
3531
Passed By
549
Net Change
+2981
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12656
5K → 10K365215+150#12656#12506
10K → 15K31096+214#12506#12292
15K → 20K34951+298#12292#11994
20K → Half3836+2#11994#11992
Half → 25K30530+275#11992#11717
25K → 30K71112+699#11717#11018
30K → 20M26713+254#11018#10764
20M → 21M2741+273#10764#10491
21M → 35K11117+94#10491#10397
35K → 23M2806+274#10397#10123
23M → 24M18016+164#10123#9959
24M → 40K15314+138#9959#9821
40K → 25.2M758+67#9821#9754
25.2M → Finish11334+79#9754#9675
TOTALS3531549+2981
📊

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