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BOSTON MARATHON 2025

Olga Sergeyevna Simonova

Bib: 15909•F

0:00
0:00
/ mi
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Overall
#0 / 28404
Top 47%
Gender (Female)
#0 / 12228
Top 32%
Division (F18-39)
#0 / 5469
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Start
0:00:00
Race begins
5K· 3.11 mi
24:25
Rank: #15330
Start → 5K
24:25 | 7:52/mi
10K· 6.21 mi
48:58
Rank: #15484 (-154)
5K → 10K
24:33 | 7:54/mi
15K· 9.32 mi
1:13:04
Rank: #14990 (+494)
10K → 15K
24:06 | 7:45/mi
20K· 12.43 mi
1:37:41
Rank: #14753 (+237)
15K → 20K
24:37 | 7:55/mi
Half· 13.11 mi
1:43:03
Rank: #14750 (+3)
20K → Half
5:22 | 7:52/mi
25K· 15.53 mi
2:02:18
Rank: #14497 (+253)
Half → 25K
19:15 | 7:56/mi
30K· 18.64 mi
2:28:08
Rank: #14252 (+245)
25K → 30K
25:50 | 8:19/mi
20M
2:39:31
Rank: #14122 (+130)
30K → 20M
11:23 | 8:23/mi
21M
2:48:25
Rank: #13997 (+125)
20M → 21M
8:54 | 8:54/mi
35K· 21.75 mi
2:54:31
Rank: #13964 (+33)
21M → 35K
6:06 | 8:09/mi
23M
3:04:51
Rank: #13819 (+145)
35K → 23M
10:20 | 8:15/mi
24M
3:12:47
Rank: #13663 (+156)
23M → 24M
7:56 | 7:56/mi
40K· 24.85 mi
3:19:33
Rank: #13473 (+190)
24M → 40K
6:46 | 7:55/mi
25.2M
3:22:37
Rank: #13420 (+53)
40K → 25.2M
3:04 | 8:54/mi
Finish· 26.22 mi
3:30:18
Rank: #13290 (+130)
25.2M → Finish
7:41 | 7:32/mi

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:43:03
Pace7:52 /mi
2nd Half
Distance13.11 mi
Time1:47:15
Pace8:11 /mi
📊Positive Split: 4.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:55:4824:257:5224:25
7:52
-
10K
6.21 mi11:20:2148:587:5324:33
7:54
+0:02
15K
9.32 mi11:44:271:13:047:5024:06
7:45
-0:09
20K
12.43 mi12:09:041:37:417:5224:37
7:55
+0:10
Half
13.11 mi12:14:261:43:037:525:22
7:52
-0:03
25K
15.53 mi12:33:412:02:187:5219:15
7:56
+0:04
30K
18.64 mi12:59:312:28:087:5725:50
8:19
+0:23
20M
20.00 mi13:10:542:39:317:5911:23
8:23
+0:04
21M
21.00 mi13:19:482:48:258:018:54
8:54
+0:31
35K
21.75 mi13:25:542:54:318:016:06
8:09
-0:45
23M
23.00 mi13:36:143:04:518:0210:20
8:15
+0:06
24M
24.00 mi13:44:103:12:478:027:56
7:56
-0:19
40K
24.85 mi13:50:563:19:338:026:46
7:55
-0:01
25.2M
25.20 mi13:54:003:22:378:023:04
8:54
+0:59
Finish
26.22 mi14:01:413:30:188:027:41
7:32
-1:22

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

7:32 /mi

Average Pace

8:02 /mi

Slowest Pace

8:54 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:41:07

77% of race

Time at Steady Pace

37:13

18% of race

Time at Slower Pace

11:58

6% of race

Average Pace: 8:01 /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 mi10:55:4824:257:5224:25
7:52
#15330
10K
6.21 mi11:20:2148:587:5324:33
7:54
#15484
15K
9.32 mi11:44:271:13:047:5024:06
7:45
#14990
20K
12.43 mi12:09:041:37:417:5224:37
7:55
#14753
Half
13.11 mi12:14:261:43:037:525:22
7:52
#14750
25K
15.53 mi12:33:412:02:187:5219:15
7:56
#14497
30K
18.64 mi12:59:312:28:087:5725:50
8:19
#14252
20M
20.00 mi13:10:542:39:317:5911:23
8:23
#14122
21M
21.00 mi13:19:482:48:258:018:54
8:54
#13997
35K
21.75 mi13:25:542:54:318:016:06
8:09
#13964
23M
23.00 mi13:36:143:04:518:0210:20
8:15
#13819
24M
24.00 mi13:44:103:12:478:027:56
7:56
#13663
40K
24.85 mi13:50:563:19:338:026:46
7:55
#13473
25.2M
25.20 mi13:54:003:22:378:023:04
8:54
#13420
Finish
26.22 mi14:01:413:30:188:027:41
7:32
#13290
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi153304733473314007(Top 49%)4019(Top 33%)4019(Top 73%)
10K6.21 mi3.10 mi15484-1544826-934826-9315680(Top 55%)4930(Top 40%)4930(Top 90%)
15K9.32 mi3.11 mi14990+4944550+2764550+27614007(Top 49%)4019(Top 33%)4019(Top 73%)
20K12.43 mi3.11 mi14753+2374444+1064444+10614313(Top 50%)4256(Top 35%)4256(Top 78%)
Half13.11 mi0.68 mi14750+34441+34441+314819(Top 52%)4497(Top 37%)4497(Top 82%)
25K15.53 mi2.42 mi14497+2534334+1074334+10713435(Top 47%)3902(Top 32%)3902(Top 71%)
30K18.64 mi3.11 mi14252+2454252+824252+8213600(Top 48%)4145(Top 34%)4145(Top 76%)
20M20.00 mi1.36 mi14122+1304206+464206+4613011(Top 46%)3982(Top 33%)3982(Top 73%)
21M21.00 mi1.00 mi13997+1254162+444162+4412942(Top 46%)4085(Top 33%)4085(Top 75%)
35K21.75 mi0.75 mi13964+334168-64168-613323(Top 47%)4322(Top 35%)4322(Top 79%)
23M23.00 mi1.25 mi13819+1454125+434125+4311755(Top 41%)3615(Top 30%)3615(Top 66%)
24M24.00 mi1.00 mi13663+1564069+564069+5610811(Top 38%)3210(Top 26%)3210(Top 59%)
40K24.85 mi0.85 mi13473+1903980+893980+899628(Top 34%)2753(Top 23%)2753(Top 50%)
25.2M25.20 mi0.35 mi13420+533966+143966+1411261(Top 40%)3635(Top 30%)3635(Top 66%)
Finish26.22 mi1.02 mi13290+1303917+493917+499533(Top 34%)2788(Top 23%)2788(Top 51%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 49%
×21stories
+97ft-345ft

Overall

14007

Females

4019

F18-39

4019

5K→10K

3.1 - 6.2 mi

Top 55%
×5stories
+79ft-138ft

Overall

15680

Females

4930

F18-39

4930

10K→15K

6.2 - 9.3 mi

Top 49%
×3stories
+67ft-78ft

Overall

14007

Females

4019

F18-39

4019

15K→20K

9.3 - 12.4 mi

Top 50%
×5stories
+106ft-86ft

Overall

14313

Females

4256

F18-39

4256

20K→Half

12.4 - 13.1 mi

Top 52%
×2stories
+19ft-37ft

Overall

14819

Females

4497

F18-39

4497

Half→25K

13.1 - 15.5 mi

Top 47%
×4stories
+66ft-88ft

Overall

13435

Females

3902

F18-39

3902

25K→30K

15.5 - 18.6 mi

Top 48%
×9stories
+181ft-148ft

Overall

13600

Females

4145

F18-39

4145

30K→20M

18.6 - 20.0 mi

Top 46%
×5stories
+64ft-50ft

Overall

13011

Females

3982

F18-39

3982

20M→21M

20.0 - 21.0 mi

Top 46%
×8stories
+106ft-24ft

Overall

12942

Females

4085

F18-39

4085

21M→35K

21.0 - 21.8 mi

Top 47%
×7stories
+17ft-86ft

Overall

13323

Females

4322

F18-39

4322

35K→23M

21.8 - 23.0 mi

Top 41%
×5stories
+23ft-63ft

Overall

11755

Females

3615

F18-39

3615

23M→24M

23.0 - 24.0 mi

Top 38%
×6stories
+12ft-82ft

Overall

10811

Females

3210

F18-39

3210

24M→40K

24.0 - 24.9 mi

Top 34%
×1story
+6ft-20ft

Overall

9628

Females

2753

F18-39

2753

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1story
+13ft-16ft

Overall

11261

Females

3635

F18-39

3635

25.2M→Finish

25.2 - 26.2 mi

Top 34%
×2stories
+22ft-21ft

Overall

9533

Females

2788

F18-39

2788

Passing Analysis

Category:
Athletes Passed
2973
Passed By
933
Net Change
+2040
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15330
5K → 10K233387-154#15330#15484
10K → 15K52935+494#15484#14990
15K → 20K32083+237#14990#14753
20K → Half3330+3#14753#14750
Half → 25K29946+253#14750#14497
25K → 30K371126+245#14497#14252
30K → 20M17242+130#14252#14122
20M → 21M17247+125#14122#13997
21M → 35K8148+33#13997#13964
35K → 23M18944+145#13964#13819
23M → 24M16913+156#13819#13663
24M → 40K1966+190#13663#13473
40K → 25.2M6815+53#13473#13420
25.2M → Finish14111+130#13420#13290
TOTALS2973933+2040
📊

Passing Visuals

Category:
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🔥Passing Intensity

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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