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BOSTON MARATHON 2025

Maria Bykova

Bib: 17187•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 40%
Gender (Female)
#0 / 12228
Top 24%
Masters (Masters Women)
#0 / 6759
Top 10%
Division (F40-44)
#0 / 1718
Top 22%
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
7:32/mi
23:25
↑ 97↓ 3451.5%
10K· 6.21 mi
7:35/mi
46:59
↑ 79↓ 1380.4%
15K· 9.32 mi
7:34/mi
1:10:31
↑ 67↓ 78
20K· 12.43 mi
7:43/mi
1:34:28
↑ 106↓ 860.1%
Half· 13.11 mi
7:31/mi
1:39:36
↑ 19↓ 370.5%
25K· 15.53 mi
7:44/mi
1:58:21
↑ 66↓ 880.2%
30K· 18.64 mi
8:01/mi
2:23:15
↑ 181↓ 1480.2%
20M
8:05/mi
2:34:14
↑ 64↓ 500.2%
21M
8:32/mi
2:42:46
↑ 106↓ 241.6%
35K· 21.75 mi
7:34/mi
2:48:26
↑ 17↓ 861.7%
23M
7:58/mi
2:58:24
↑ 23↓ 630.6%
24M
7:50/mi
3:06:14
↓ 821.3%
40K· 24.85 mi
7:58/mi
3:13:03
↓ 200.3%
25.2M
8:48/mi
3:16:05
↑ 13↓ 160.2%
Finish· 26.22 mi
7:39/mi
3:23:53
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:39:36
Pace7:36 /mi
2nd Half
Distance13.11 mi
Time1:44:17
Pace7:57 /mi
📊Positive Split: 4.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:13:4423:257:3223:25
7:32
-
10K
6.21 mi11:37:1846:597:3423:34
7:35
+0:03
15K
9.32 mi12:00:501:10:317:3423:32
7:34
-0:01
20K
12.43 mi12:24:471:34:287:3623:57
7:43
+0:09
Half
13.11 mi12:29:551:39:367:365:08
7:31
-0:12
25K
15.53 mi12:48:401:58:217:3718:45
7:44
+0:13
30K
18.64 mi13:13:342:23:157:4124:54
8:01
+0:17
20M
20.00 mi13:24:332:34:147:4310:59
8:05
+0:04
21M
21.00 mi13:33:052:42:467:458:32
8:32
+0:27
35K
21.75 mi13:38:452:48:267:455:40
7:34
-0:58
23M
23.00 mi13:48:432:58:247:459:58
7:58
+0:24
24M
24.00 mi13:56:333:06:147:467:50
7:50
-0:08
40K
24.85 mi14:03:223:13:037:466:49
7:58
+0:08
25.2M
25.20 mi14:06:243:16:057:473:02
8:48
+0:50
Finish
26.22 mi14:14:123:23:537:477:48
7:39
-1:09

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

7:31 /mi

Average Pace

7:47 /mi

Slowest Pace

8:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:12:19

94% of race

Time at Steady Pace

11:34

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:47 /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 mi11:13:4423:257:3223:25
7:32
#12590
10K
6.21 mi11:37:1846:597:3423:34
7:35
#12675
15K
9.32 mi12:00:501:10:317:3423:32
7:34
#12563
20K
12.43 mi12:24:471:34:287:3623:57
7:43
#12505
Half
13.11 mi12:29:551:39:367:365:08
7:31
#12475
25K
15.53 mi12:48:401:58:217:3718:45
7:44
#12353
30K
18.64 mi13:13:342:23:157:4124:54
8:01
#12113
20M
20.00 mi13:24:332:34:147:4310:59
8:05
#12017
21M
21.00 mi13:33:052:42:467:458:32
8:32
#11890
35K
21.75 mi13:38:452:48:267:455:40
7:34
#11788
23M
23.00 mi13:48:432:58:247:459:58
7:58
#11614
24M
24.00 mi13:56:333:06:147:467:50
7:50
#11498
40K
24.85 mi14:03:223:13:037:466:49
7:58
#11415
25.2M
25.20 mi14:06:243:16:057:473:02
8:48
#11371
Finish
26.22 mi14:14:123:23:537:477:48
7:39
#11300
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi125903109310912388(Top 44%)3107(Top 25%)3107(Top 181%)
10K6.21 mi3.10 mi12675-853162-533162-5312896(Top 45%)3312(Top 27%)3312(Top 193%)
15K9.32 mi3.11 mi12563+1123137+253137+2512388(Top 44%)3107(Top 25%)3107(Top 181%)
20K12.43 mi3.11 mi12505+583148-113148-1112501(Top 44%)3271(Top 27%)3271(Top 190%)
Half13.11 mi0.68 mi12475+303134+143134+1411981(Top 42%)2931(Top 24%)2931(Top 171%)
25K15.53 mi2.42 mi12353+1223106+283106+2811824(Top 42%)3027(Top 25%)3027(Top 176%)
30K18.64 mi3.11 mi12113+2403053+533053+5311493(Top 40%)3029(Top 25%)3029(Top 176%)
20M20.00 mi1.36 mi12017+963046+73046+710995(Top 39%)2936(Top 24%)2936(Top 171%)
21M21.00 mi1.00 mi11890+1273015+313015+3110719(Top 38%)2967(Top 24%)2967(Top 173%)
35K21.75 mi0.75 mi11788+1022979+362979+369228(Top 32%)2250(Top 18%)2250(Top 131%)
23M23.00 mi1.25 mi11614+1742938+412938+419771(Top 34%)2627(Top 21%)2627(Top 153%)
24M24.00 mi1.00 mi11498+1162917+212917+2110092(Top 36%)2856(Top 23%)2856(Top 166%)
40K24.85 mi0.85 mi11415+832913+42913+410022(Top 35%)2934(Top 24%)2934(Top 171%)
25.2M25.20 mi0.35 mi11371+442908+52908+510661(Top 38%)3317(Top 27%)3317(Top 193%)
Finish26.22 mi1.02 mi11300+712906+22906+210375(Top 37%)3161(Top 26%)3161(Top 184%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

12388

Females

3107

F40-44

3107

5K→10K

3.1 - 6.2 mi

Top 45%
×5story building
+79ft-138ft

Overall

12896

Females

3312

F40-44

3312

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

12388

Females

3107

F40-44

3107

15K→20K

9.3 - 12.4 mi

Top 44%
×5story building
+106ft-86ft

Overall

12501

Females

3271

F40-44

3271

20K→Half

12.4 - 13.1 mi

Top 42%
×2story building
+19ft-37ft

Overall

11981

Females

2931

F40-44

2931

Half→25K

13.1 - 15.5 mi

Top 42%
×4story building
+66ft-88ft

Overall

11824

Females

3027

F40-44

3027

25K→30K

15.5 - 18.6 mi

Top 40%
×9story building
+181ft-148ft

Overall

11493

Females

3029

F40-44

3029

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

10995

Females

2936

F40-44

2936

20M→21M

20.0 - 21.0 mi

Top 38%
×8story building
+106ft-24ft

Overall

10719

Females

2967

F40-44

2967

21M→35K

21.0 - 21.8 mi

Top 32%
×7story building
+17ft-86ft

Overall

9228

Females

2250

F40-44

2250

35K→23M

21.8 - 23.0 mi

Top 34%
×5story building
+23ft-63ft

Overall

9771

Females

2627

F40-44

2627

23M→24M

23.0 - 24.0 mi

Top 36%
×6story building
+12ft-82ft

Overall

10092

Females

2856

F40-44

2856

24M→40K

24.0 - 24.9 mi

Top 35%
×1story
+6ft-20ft

Overall

10022

Females

2934

F40-44

2934

40K→25.2M

24.9 - 25.2 mi

Top 38%
×1story
+13ft-16ft

Overall

10661

Females

3317

F40-44

3317

25.2M→Finish

25.2 - 26.2 mi

Top 37%
×2story building
+22ft-21ft

Overall

10375

Females

3161

F40-44

3161

Passing Analysis

Category:
Athletes Passed
2407
Passed By
1117
Net Change
+1290
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12590
5K → 10K251336-85#12590#12675
10K → 15K252140+112#12675#12563
15K → 20K212154+58#12563#12505
20K → Half4818+30#12505#12475
Half → 25K21391+122#12475#12353
25K → 30K358118+240#12353#12113
30K → 20M15862+96#12113#12017
20M → 21M16033+127#12017#11890
21M → 35K11311+102#11890#11788
35K → 23M20632+174#11788#11614
23M → 24M14630+116#11614#11498
24M → 40K12138+83#11498#11415
40K → 25.2M5915+44#11415#11371
25.2M → Finish11039+71#11371#11300
TOTALS24071117+1290
📊

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