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BOSTON MARATHON 2025

Andrea Sikora

Bib: 20391•F

PA

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F50-54)
#0 / 1303
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
7:54/mi
24:33
↑ 97↓ 3451.5%
10K· 6.21 mi
7:53/mi
49:04
↑ 79↓ 1380.4%
15K· 9.32 mi
7:53/mi
1:13:33
↑ 67↓ 78
20K· 12.43 mi
8:07/mi
1:38:45
↑ 106↓ 860.1%
Half· 13.11 mi
8:08/mi
1:44:18
↑ 19↓ 370.5%
25K· 15.53 mi
8:36/mi
2:05:08
↑ 66↓ 880.2%
30K· 18.64 mi
10:00/mi
2:36:13
↑ 181↓ 1480.2%
20M
9:56/mi
2:49:43
↑ 64↓ 500.2%
21M
11:46/mi
3:01:29
↑ 106↓ 241.6%
35K· 21.75 mi
9:41/mi
3:08:44
↑ 17↓ 861.7%
23M
11:48/mi
3:23:30
↑ 23↓ 630.6%
24M
8:53/mi
3:32:23
↓ 821.3%
40K· 24.85 mi
10:37/mi
3:41:28
↓ 200.3%
25.2M
12:48/mi
3:45:53
↑ 13↓ 160.2%
Finish· 26.22 mi
9:51/mi
3:55:55
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:44:18
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time2:11:37
Pace10:02 /mi
📊Positive Split: 26.2% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:17:4924:337:5424:33
7:54
-
10K
6.21 mi11:42:2049:047:5424:31
7:53
-0:01
15K
9.32 mi12:06:491:13:337:5324:29
7:53
0:00
20K
12.43 mi12:32:011:38:457:5725:12
8:07
+0:14
Half
13.11 mi12:37:341:44:187:575:33
8:08
+0:01
25K
15.53 mi12:58:242:05:088:0320:50
8:36
+0:28
30K
18.64 mi13:29:292:36:138:2331:05
10:00
+1:24
20M
20.00 mi13:42:592:49:438:2913:30
9:56
-0:04
21M
21.00 mi13:54:453:01:298:3911:46
11:46
+1:50
35K
21.75 mi14:02:003:08:448:417:15
9:41
-2:05
23M
23.00 mi14:16:463:23:308:5114:46
11:48
+2:07
24M
24.00 mi14:25:393:32:238:518:53
8:53
-2:55
40K
24.85 mi14:34:443:41:288:559:05
10:37
+1:44
25.2M
25.20 mi14:39:093:45:538:584:25
12:48
+2:11
Finish
26.22 mi14:49:113:55:559:0010:02
9:51
-2:57

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

7:53 /mi

Average Pace

9:00 /mi

Slowest Pace

12:48 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

2:14:01

57% of race

Time at Steady Pace

1:01:52

26% of race

Time at Slower Pace

40:02

17% of race

Average Pace: 9:00 /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 mi11:17:4924:337:5424:33
7:54
#15733
10K
6.21 mi11:42:2049:047:5424:31
7:53
#15652
15K
9.32 mi12:06:491:13:337:5324:29
7:53
#15432
20K
12.43 mi12:32:011:38:457:5725:12
8:07
#15519
Half
13.11 mi12:37:341:44:187:575:33
8:08
#15602
25K
15.53 mi12:58:242:05:088:0320:50
8:36
#15991
30K
18.64 mi13:29:292:36:138:2331:05
10:00
#17342
20M
20.00 mi13:42:592:49:438:2913:30
9:56
#17686
21M
21.00 mi13:54:453:01:298:3911:46
11:46
#18268
35K
21.75 mi14:02:003:08:448:417:15
9:41
#18404
23M
23.00 mi14:16:463:23:308:5114:46
11:48
#19140
24M
24.00 mi14:25:393:32:238:518:53
8:53
#19041
40K
24.85 mi14:34:443:41:288:559:05
10:37
#19221
25.2M
25.20 mi14:39:093:45:538:584:25
12:48
#19365
Finish
26.22 mi14:49:113:55:559:0010:02
9:51
#19540
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi157334985498515110(Top 53%)4650(Top 38%)4650(Top 357%)
10K6.21 mi3.10 mi15652+814928+574928+5715614(Top 55%)4899(Top 40%)4899(Top 376%)
15K9.32 mi3.11 mi15432+2204807+1214807+12115110(Top 53%)4650(Top 38%)4650(Top 357%)
20K12.43 mi3.11 mi15519-874876-694876-6915727(Top 55%)5052(Top 41%)5052(Top 388%)
Half13.11 mi0.68 mi15602-834934-584934-5816948(Top 60%)5751(Top 47%)5751(Top 441%)
25K15.53 mi2.42 mi15991-3895160-2265160-22617785(Top 63%)6305(Top 52%)6305(Top 484%)
30K18.64 mi3.11 mi17342-13516025-8656025-86521612(Top 76%)8561(Top 70%)8561(Top 657%)
20M20.00 mi1.36 mi17686-3446257-2326257-23220720(Top 73%)8201(Top 67%)8201(Top 629%)
21M21.00 mi1.00 mi18268-5826592-3356592-33523155(Top 82%)9574(Top 78%)9574(Top 735%)
35K21.75 mi0.75 mi18404-1366681-896681-8920987(Top 74%)8491(Top 69%)8491(Top 652%)
23M23.00 mi1.25 mi19140-7367124-4437124-44324755(Top 87%)10472(Top 86%)10472(Top 804%)
24M24.00 mi1.00 mi19041+997091+337091+3316804(Top 59%)6394(Top 52%)6394(Top 491%)
40K24.85 mi0.85 mi19221-1807222-1317222-13122256(Top 78%)9337(Top 76%)9337(Top 717%)
25.2M25.20 mi0.35 mi19365-1447314-927314-9224763(Top 87%)10548(Top 86%)10548(Top 810%)
Finish26.22 mi1.02 mi19540-1757433-1197433-11922451(Top 79%)9394(Top 77%)9394(Top 721%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

15110

Females

4650

F50-54

4650

5K→10K

3.1 - 6.2 mi

Top 55%
×5story building
+79ft-138ft

Overall

15614

Females

4899

F50-54

4899

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

15110

Females

4650

F50-54

4650

15K→20K

9.3 - 12.4 mi

Top 55%
×5story building
+106ft-86ft

Overall

15727

Females

5052

F50-54

5052

20K→Half

12.4 - 13.1 mi

Top 60%
×2story building
+19ft-37ft

Overall

16948

Females

5751

F50-54

5751

Half→25K

13.1 - 15.5 mi

Top 63%
×4story building
+66ft-88ft

Overall

17785

Females

6305

F50-54

6305

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

21612

Females

8561

F50-54

8561

30K→20M

18.6 - 20.0 mi

Top 73%
×5story building
+64ft-50ft

Overall

20720

Females

8201

F50-54

8201

20M→21M

20.0 - 21.0 mi

Top 82%
×8story building
+106ft-24ft

Overall

23155

Females

9574

F50-54

9574

21M→35K

21.0 - 21.8 mi

Top 74%
×7story building
+17ft-86ft

Overall

20987

Females

8491

F50-54

8491

35K→23M

21.8 - 23.0 mi

Top 87%
×5story building
+23ft-63ft

Overall

24755

Females

10472

F50-54

10472

23M→24M

23.0 - 24.0 mi

Top 59%
×6story building
+12ft-82ft

Overall

16804

Females

6394

F50-54

6394

24M→40K

24.0 - 24.9 mi

Top 78%
×1story
+6ft-20ft

Overall

22256

Females

9337

F50-54

9337

40K→25.2M

24.9 - 25.2 mi

Top 87%
×1story
+13ft-16ft

Overall

24763

Females

10548

F50-54

10548

25.2M→Finish

25.2 - 26.2 mi

Top 79%
×2story building
+22ft-21ft

Overall

22451

Females

9394

F50-54

9394

Passing Analysis

Category:
Athletes Passed
1270
Passed By
5077
Net Change
-3807
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15733
5K → 10K362281+81#15733#15652
10K → 15K31191+220#15652#15432
15K → 20K178265-87#15432#15519
20K → Half1497-83#15519#15602
Half → 25K88477-389#15602#15991
25K → 30K361387-1351#15991#17342
30K → 20M44388-344#17342#17686
20M → 21M13595-582#17686#18268
21M → 35K28164-136#18268#18404
35K → 23M13749-736#18404#19140
23M → 24M12324+99#19140#19041
24M → 40K33213-180#19041#19221
40K → 25.2M8152-144#19221#19365
25.2M → Finish19194-175#19365#19540
TOTALS12705077-3807
📊

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