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BOSTON MARATHON 2026

Anna Kosova

Bib: 20375•F

CA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 50%
Gender (Female)
#0 / 12578
Top 37%
Masters (Masters Women)
#0 / 6862
Top 21%
Age Group (F40-44)
#0 / 1737
Top 43%
Race Day Weather
51°/41°F
overcast clouds

Race Timeline and Course Information

Your journey through the course with elevation, pacing, and checkpoint details

⏱️ Race Timeline

Watch your race unfold from start to finish

Start
0:00:00
Race begins
5K
23:22
3.11 mi
Rank: #12972
Start → 5K
23:22 | 7:32/mi
10K
46:32
6.21 mi
Rank: #12747 (+225)
5K → 10K
23:10 | 7:28/mi
15K
1:09:45
9.32 mi
Rank: #12679 (+68)
10K → 15K
23:13 | 7:29/mi
20K
1:33:34
12.43 mi
Rank: #12859 (-180)
15K → 20K
23:49 | 7:40/mi
HALF
1:38:43
13.11 mi
Rank: #12882 (-23)
20K → HALF
5:09 | 7:34/mi
25K
1:57:45
15.53 mi
Rank: #13094 (-212)
HALF → 25K
19:02 | 7:51/mi
30K
2:23:47
18.64 mi
Rank: #13635 (-541)
25K → 30K
26:02 | 8:23/mi
20M
2:35:22
20.00 mi
Rank: #13821 (-186)
30K → 20M
11:35 | 8:32/mi
21M
2:44:27
21.00 mi
Rank: #13995 (-174)
20M → 21M
9:05 | 9:05/mi
35K
2:50:39
21.75 mi
Rank: #14077 (-82)
21M → 35K
6:12 | 8:18/mi
23M
3:01:27
23.00 mi
Rank: #14218 (-141)
35K → 23M
10:48 | 8:38/mi
24M
3:09:37
24.00 mi
Rank: #14250 (-32)
23M → 24M
8:10 | 8:10/mi
40K
3:16:55
24.85 mi
Rank: #14325 (-75)
24M → 40K
7:18 | 8:33/mi
25.2M
3:19:58
25.20 mi
Rank: #14327 (-2)
40K → 25.2M
3:03 | 8:51/mi
FINISH
3:28:09
26.22 mi
Rank: #14374 (-47)
25.2M → FINISH
8:11 | 8:02/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:38:43
Pace7:32 /mi
2nd Half
Distance13.11 mi
Time1:49:26
Pace8:21 /mi
📊Positive Split: 10.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:08:0923:227:3223:22
7:32
-
10K
6.21 mi11:31:1946:327:3023:10
7:28
-0:04
15K
9.32 mi11:54:321:09:457:3023:13
7:29
+0:01
20K
12.43 mi12:18:211:33:347:3223:49
7:40
+0:11
HALF
13.11 mi12:23:301:38:437:325:09
7:34
-0:06
25K
15.53 mi12:42:321:57:457:3519:02
7:51
+0:17
30K
18.64 mi13:08:342:23:477:4326:02
8:23
+0:32
20M
20.00 mi13:20:092:35:227:4711:35
8:32
+0:09
21M
21.00 mi13:29:142:44:277:509:05
9:05
+0:33
35K
21.75 mi13:35:262:50:397:516:12
8:18
-0:47
23M
23.00 mi13:46:143:01:277:5410:48
8:38
+0:20
24M
24.00 mi13:54:243:09:377:558:10
8:10
-0:28
40K
24.85 mi14:01:423:16:557:567:18
8:33
+0:23
25.2M
25.20 mi14:04:453:19:587:573:03
8:51
+0:18
FINISH
26.22 mi14:12:563:28:097:578:11
8:02
-0:49

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

📈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

7:28 /mi

Average Pace

7:57 /mi

Slowest Pace

9:05 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Bar length shows time spent in each segment. Colors mark your faster to slower segments, relative to your own pace.

Time at Faster Pace

1:57:45

57% of race

Time at Steady Pace

48:35

23% of race

Time at Slower Pace

41:49

20% of race

Average Pace: 7:56 /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

Enhanced split table showing pace trends through mini sparkline visualizations.

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:08:0923:227:3223:22
7:32
#12972
10K
6.21 mi11:31:1946:327:3023:10
7:28
#12747
15K
9.32 mi11:54:321:09:457:3023:13
7:29
#12679
20K
12.43 mi12:18:211:33:347:3223:49
7:40
#12859
HALF
13.11 mi12:23:301:38:437:325:09
7:34
#12882
25K
15.53 mi12:42:321:57:457:3519:02
7:51
#13094
30K
18.64 mi13:08:342:23:477:4326:02
8:23
#13635
20M
20.00 mi13:20:092:35:227:4711:35
8:32
#13821
21M
21.00 mi13:29:142:44:277:509:05
9:05
#13995
35K
21.75 mi13:35:262:50:397:516:12
8:18
#14077
23M
23.00 mi13:46:143:01:277:5410:48
8:38
#14218
24M
24.00 mi13:54:243:09:377:558:10
8:10
#14250
40K
24.85 mi14:01:423:16:557:567:18
8:33
#14325
25.2M
25.20 mi14:04:453:19:587:573:03
8:51
#14327
FINISH
26.22 mi14:12:563:28:097:578:11
8:02
#14374
Faster pace
Steady pace
Slower pace

Rankings

Your position at each checkpoint and how you ranked in each segment

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi129723470347012601(Top 43%)3347(Top 27%)3347(Top 193%)
10K6.21 mi3.10 mi12747+2253364+1063364+10612572(Top 43%)3296(Top 26%)3296(Top 190%)
15K9.32 mi3.11 mi12679+683349+153349+1512601(Top 43%)3347(Top 27%)3347(Top 193%)
20K12.43 mi3.11 mi12859-1803486-1373486-13713443(Top 46%)3913(Top 31%)3913(Top 225%)
HALF13.11 mi0.68 mi12882-233504-183504-1813537(Top 47%)3900(Top 31%)3900(Top 225%)
25K15.53 mi2.42 mi13094-2123655-1513655-15114242(Top 49%)4439(Top 35%)4439(Top 256%)
30K18.64 mi3.11 mi13635-5413991-3363991-33616137(Top 56%)5593(Top 44%)5593(Top 322%)
20M20.00 mi1.36 mi13821-1864126-1354126-13516379(Top 56%)5848(Top 46%)5848(Top 337%)
21M21.00 mi1.00 mi13995-1744262-1364262-13616571(Top 57%)6004(Top 48%)6004(Top 346%)
35K21.75 mi0.75 mi14077-824318-564318-5616356(Top 56%)5941(Top 47%)5941(Top 342%)
23M23.00 mi1.25 mi14218-1414427-1094427-10916491(Top 57%)6131(Top 49%)6131(Top 353%)
24M24.00 mi1.00 mi14250-324471-444471-4414865(Top 51%)5254(Top 42%)5254(Top 302%)
40K24.85 mi0.85 mi14325-754547-764547-7615927(Top 55%)5920(Top 47%)5920(Top 341%)
25.2M25.20 mi0.35 mi14327-24558-114558-1113831(Top 48%)4806(Top 38%)4806(Top 277%)
FINISH26.22 mi1.02 mi14374-474598-404598-4015392(Top 53%)5628(Top 45%)5628(Top 324%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 43%
×21
+97ft-345ft

Overall

12601

Females

3347

F40-44

3347

5K→10K

3.1 - 6.2 mi

Top 43%
×5
+79ft-138ft

Overall

12572

Females

3296

F40-44

3296

10K→15K

6.2 - 9.3 mi

Top 43%
×3
+67ft-78ft

Overall

12601

Females

3347

F40-44

3347

15K→20K

9.3 - 12.4 mi

Top 46%
×5
+106ft-86ft

Overall

13443

Females

3913

F40-44

3913

20K→HALF

12.4 - 13.1 mi

Top 47%
×2
+19ft-37ft

Overall

13537

Females

3900

F40-44

3900

HALF→25K

13.1 - 15.5 mi

Top 49%
×4
+66ft-88ft

Overall

14242

Females

4439

F40-44

4439

25K→30K

15.5 - 18.6 mi

Top 56%
×9
+181ft-148ft

Overall

16137

Females

5593

F40-44

5593

30K→20M

18.6 - 20.0 mi

Top 56%
×5
+64ft-50ft

Overall

16379

Females

5848

F40-44

5848

20M→21M

20.0 - 21.0 mi

Top 57%
×8
+106ft-24ft

Overall

16571

Females

6004

F40-44

6004

21M→35K

21.0 - 21.8 mi

Top 56%
×7
+17ft-86ft

Overall

16356

Females

5941

F40-44

5941

35K→23M

21.8 - 23.0 mi

Top 57%
×5
+23ft-63ft

Overall

16491

Females

6131

F40-44

6131

23M→24M

23.0 - 24.0 mi

Top 51%
×6
+12ft-82ft

Overall

14865

Females

5254

F40-44

5254

24M→40K

24.0 - 24.9 mi

Top 55%
×1
+6ft-20ft

Overall

15927

Females

5920

F40-44

5920

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1
+13ft-16ft

Overall

13831

Females

4806

F40-44

4806

25.2M→FINISH

25.2 - 26.2 mi

Top 53%
×2
+22ft-21ft

Overall

15392

Females

5628

F40-44

5628

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1290*
Passed By
2042
Net Change
-1402
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#12972
5K → 10K401*176+225#12972#12747
10K → 15K219*151+68#12747#12679
15K → 20K92200-180#12679#12859
20K → HALF2245-23#12859#12882
HALF → 25K78200-212#12882#13094
25K → 30K71200-541#13094#13635
30K → 20M60200-186#13635#13821
20M → 21M51200-174#13821#13995
21M → 35K34116-82#13995#14077
35K → 23M64200-141#14077#14218
23M → 24M68100-32#14218#14250
24M → 40K46121-75#14250#14325
40K → 25.2M3133-2#14325#14327
25.2M → FINISH53100-47#14327#14374
TOTALS1290*2042-1402

* Includes athletes who did not complete a segment (DNF/DNQ).

📊

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

📈Position Graph

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🎨Heatmap Timeline

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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing