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BOSTON MARATHON 2025

Natalia Yanchenko

Bib: 23021•F

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

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
8:56/mi
27:45
↑ 97↓ 3451.5%
10K· 6.21 mi
8:39/mi
54:38
↑ 79↓ 1380.4%
15K· 9.32 mi
8:49/mi
1:22:03
↑ 67↓ 78
20K· 12.43 mi
9:04/mi
1:50:14
↑ 106↓ 860.1%
Half· 13.11 mi
9:01/mi
1:56:23
↑ 19↓ 370.5%
25K· 15.53 mi
9:12/mi
2:18:41
↑ 66↓ 880.2%
30K· 18.64 mi
9:43/mi
2:48:51
↑ 181↓ 1480.2%
20M
10:02/mi
3:02:29
↑ 64↓ 500.2%
21M
11:11/mi
3:13:40
↑ 106↓ 241.6%
35K· 21.75 mi
8:52/mi
3:20:18
↑ 17↓ 861.7%
23M
9:25/mi
3:32:06
↑ 23↓ 630.6%
24M
9:16/mi
3:41:22
↓ 821.3%
40K· 24.85 mi
9:14/mi
3:49:16
↓ 200.3%
25.2M
10:12/mi
3:52:47
↑ 13↓ 160.2%
Finish· 26.22 mi
8:56/mi
4:01:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:56:23
Pace8:53 /mi
2nd Half
Distance13.11 mi
Time2:05:30
Pace9:34 /mi
📊Positive Split: 7.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:43:2127:458:5627:45
8:56
-
10K
6.21 mi12:10:1454:388:4826:53
8:39
-0:17
15K
9.32 mi12:37:391:22:038:4827:25
8:49
+0:10
20K
12.43 mi13:05:501:50:148:5228:11
9:04
+0:15
Half
13.11 mi13:11:591:56:238:536:09
9:01
-0:03
25K
15.53 mi13:34:172:18:418:5622:18
9:12
+0:11
30K
18.64 mi14:04:272:48:519:0330:10
9:43
+0:31
20M
20.00 mi14:18:053:02:299:0713:38
10:02
+0:19
21M
21.00 mi14:29:163:13:409:1311:11
11:11
+1:09
35K
21.75 mi14:35:543:20:189:136:38
8:52
-2:19
23M
23.00 mi14:47:423:32:069:1311:48
9:25
+0:33
24M
24.00 mi14:56:583:41:229:139:16
9:16
-0:09
40K
24.85 mi15:04:523:49:169:137:54
9:14
-0:02
25.2M
25.20 mi15:08:233:52:479:143:31
10:12
+0:58
Finish
26.22 mi15:17:294:01:539:149:06
8:56
-1:16

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

8:39 /mi

Average Pace

9:14 /mi

Slowest Pace

11:11 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:00:56

25% of race

Time at Steady Pace

2:02:27

51% of race

Time at Slower Pace

58:30

24% of race

Average Pace: 9:14 /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 mi11:43:2127:458:5627:45
8:56
#22146
10K
6.21 mi12:10:1454:388:4826:53
8:39
#21413
15K
9.32 mi12:37:391:22:038:4827:25
8:49
#21285
20K
12.43 mi13:05:501:50:148:5228:11
9:04
#21280
Half
13.11 mi13:11:591:56:238:536:09
9:01
#21319
25K
15.53 mi13:34:172:18:418:5622:18
9:12
#21242
30K
18.64 mi14:04:272:48:519:0330:10
9:43
#21141
20M
20.00 mi14:18:053:02:299:0713:38
10:02
#21135
21M
21.00 mi14:29:163:13:409:1311:11
11:11
#21220
35K
21.75 mi14:35:543:20:189:136:38
8:52
#21083
23M
23.00 mi14:47:423:32:069:1311:48
9:25
#20924
24M
24.00 mi14:56:583:41:229:139:16
9:16
#20829
40K
24.85 mi15:04:523:49:169:137:54
9:14
#20722
25.2M
25.20 mi15:08:233:52:479:143:31
10:12
#20677
Finish
26.22 mi15:17:294:01:539:149:06
8:56
#20621
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi221468706870621157(Top 74%)8089(Top 66%)8089(Top 446%)
10K6.21 mi3.10 mi21413+7338279+4278279+42720628(Top 73%)7817(Top 64%)7817(Top 431%)
15K9.32 mi3.11 mi21285+1288194+858194+8521157(Top 74%)8089(Top 66%)8089(Top 446%)
20K12.43 mi3.11 mi21280+58187+78187+721328(Top 75%)8217(Top 67%)8217(Top 453%)
Half13.11 mi0.68 mi21319-398214-278214-2721890(Top 77%)8526(Top 70%)8526(Top 470%)
25K15.53 mi2.42 mi21242+778175+398175+3920762(Top 73%)7951(Top 65%)7951(Top 439%)
30K18.64 mi3.11 mi21141+1018164+118164+1120725(Top 73%)8068(Top 66%)8068(Top 445%)
20M20.00 mi1.36 mi21135+68186-228186-2221074(Top 74%)8397(Top 69%)8397(Top 463%)
21M21.00 mi1.00 mi21220-858240-548240-5421866(Top 77%)8896(Top 73%)8896(Top 491%)
35K21.75 mi0.75 mi21083+1378181+598181+5917649(Top 62%)6724(Top 55%)6724(Top 371%)
23M23.00 mi1.25 mi20924+1598121+608121+6018371(Top 65%)7178(Top 59%)7178(Top 396%)
24M24.00 mi1.00 mi20829+958083+388083+3818698(Top 66%)7393(Top 60%)7393(Top 408%)
40K24.85 mi0.85 mi20722+1078040+438040+4317590(Top 62%)6923(Top 57%)6923(Top 382%)
25.2M25.20 mi0.35 mi20677+458021+198021+1917954(Top 63%)7132(Top 58%)7132(Top 393%)
Finish26.22 mi1.02 mi20621+568011+108011+1018700(Top 66%)7435(Top 61%)7435(Top 410%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 74%
×21story building
+97ft-345ft

Overall

21157

Females

8089

F45-49

8089

5K→10K

3.1 - 6.2 mi

Top 73%
×5story building
+79ft-138ft

Overall

20628

Females

7817

F45-49

7817

10K→15K

6.2 - 9.3 mi

Top 74%
×3story building
+67ft-78ft

Overall

21157

Females

8089

F45-49

8089

15K→20K

9.3 - 12.4 mi

Top 75%
×5story building
+106ft-86ft

Overall

21328

Females

8217

F45-49

8217

20K→Half

12.4 - 13.1 mi

Top 77%
×2story building
+19ft-37ft

Overall

21890

Females

8526

F45-49

8526

Half→25K

13.1 - 15.5 mi

Top 73%
×4story building
+66ft-88ft

Overall

20762

Females

7951

F45-49

7951

25K→30K

15.5 - 18.6 mi

Top 73%
×9story building
+181ft-148ft

Overall

20725

Females

8068

F45-49

8068

30K→20M

18.6 - 20.0 mi

Top 74%
×5story building
+64ft-50ft

Overall

21074

Females

8397

F45-49

8397

20M→21M

20.0 - 21.0 mi

Top 77%
×8story building
+106ft-24ft

Overall

21866

Females

8896

F45-49

8896

21M→35K

21.0 - 21.8 mi

Top 62%
×7story building
+17ft-86ft

Overall

17649

Females

6724

F45-49

6724

35K→23M

21.8 - 23.0 mi

Top 65%
×5story building
+23ft-63ft

Overall

18371

Females

7178

F45-49

7178

23M→24M

23.0 - 24.0 mi

Top 66%
×6story building
+12ft-82ft

Overall

18698

Females

7393

F45-49

7393

24M→40K

24.0 - 24.9 mi

Top 62%
×1story
+6ft-20ft

Overall

17590

Females

6923

F45-49

6923

40K→25.2M

24.9 - 25.2 mi

Top 63%
×1story
+13ft-16ft

Overall

17954

Females

7132

F45-49

7132

25.2M→Finish

25.2 - 26.2 mi

Top 66%
×2story building
+22ft-21ft

Overall

18700

Females

7435

F45-49

7435

Passing Analysis

Category:
Athletes Passed
2543
Passed By
1018
Net Change
+1525
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22146
5K → 10K78653+733#22146#21413
10K → 15K279151+128#21413#21285
15K → 20K198193+5#21285#21280
20K → Half2463-39#21280#21319
Half → 25K180103+77#21319#21242
25K → 30K245144+101#21242#21141
30K → 20M108102+6#21141#21135
20M → 21M59144-85#21135#21220
21M → 35K1425+137#21220#21083
35K → 23M17011+159#21083#20924
23M → 24M11217+95#20924#20829
24M → 40K1169+107#20829#20722
40K → 25.2M505+45#20722#20677
25.2M → Finish7418+56#20677#20621
TOTALS25431018+1525
📊

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