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BOSTON MARATHON 2023

Burdeina Olena

Bib: 20175•F

Masters
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Overall
#0 / 26622
Gender (Female)
#0 / 11423
Masters (Masters Women)
#0 / 6539
Age Group (F45-49)
#0 / 1817
Race Day Weather
49°/39°F
light intensity drizzle

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· 3.11 mi
26:05
Rank: #16867
Start → 5K
26:05 | 8:24/mi
10K· 6.21 mi
53:14
Rank: #18317 (-1450)
5K → 10K
27:09 | 8:44/mi
15K· 9.32 mi
1:21:56
Rank: #19562 (-1245)
10K → 15K
28:42 | 9:14/mi
20K· 12.43 mi
1:54:03
Rank: #21106 (-1544)
15K → 20K
32:07 | 10:20/mi
Half· 13.11 mi
2:00:43
Rank: #21211 (-105)
20K → Half
6:40 | 9:46/mi
25K· 15.53 mi
2:28:06
Rank: #21990 (-779)
Half → 25K
27:23 | 11:18/mi
30K· 18.64 mi
3:07:24
Rank: #22914 (-924)
25K → 30K
39:18 | 12:39/mi
20M
3:24:37
Rank: #23149 (-235)
30K → 20M
17:13 | 12:40/mi
21M
3:40:00
Rank: #23444 (-295)
20M → 21M
15:23 | 15:23/mi
35K· 21.75 mi
3:48:33
Rank: #23467 (-23)
21M → 35K
8:33 | 11:26/mi
23M
4:03:20
Rank: #23502 (-35)
35K → 23M
14:47 | 11:48/mi
24M
4:14:51
Rank: #23530 (-28)
23M → 24M
11:31 | 11:31/mi
40K· 24.85 mi
4:24:35
Rank: #23514 (+16)
24M → 40K
9:44 | 11:23/mi
25.2M
4:28:39
Rank: #23495 (+19)
40K → 25.2M
4:04 | 11:48/mi
Finish· 26.22 mi
4:39:12
Rank: #23471 (+24)
25.2M → Finish
10:33 | 10:21/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via Half
Distance13.11 mi
Time2:00:43
Pace9:12 /mi
2nd Half
Distance13.11 mi
Time2:38:29
Pace12:05 /mi
📊Positive Split: 31.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:16:1326:058:2426:05
8:24
-
10K
6.21 mi11:43:2253:148:3427:09
8:44
+0:20
15K
9.32 mi12:12:041:21:568:4728:42
9:14
+0:30
20K
12.43 mi12:44:111:54:039:1132:07
10:20
+1:06
Half
13.11 mi12:50:512:00:439:126:40
9:46
-0:34
25K
15.53 mi13:18:142:28:069:3227:23
11:18
+1:32
30K
18.64 mi13:57:323:07:2410:0339:18
12:39
+1:21
20M
20.00 mi14:14:453:24:3710:1417:13
12:40
+0:01
21M
21.00 mi14:30:083:40:0010:2915:23
15:23
+2:43
35K
21.75 mi14:38:413:48:3310:318:33
11:26
-3:57
23M
23.00 mi14:53:284:03:2010:3514:47
11:48
+0:22
24M
24.00 mi15:04:594:14:5110:3711:31
11:31
-0:17
40K
24.85 mi15:14:434:24:3510:399:44
11:23
-0:08
25.2M
25.20 mi15:18:474:28:3910:404:04
11:48
+0:25
Finish
26.22 mi15:29:204:39:1210:3910:33
10:21
-1:27

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

8:24 /mi

Average Pace

10:39 /mi

Slowest Pace

15:23 /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

2:11:16

47% of race

Time at Steady Pace

1:16:02

27% of race

Time at Slower Pace

1:11:54

26% of race

Average Pace: 10:39 /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 mi11:16:1326:058:2426:05
8:24
#16867
10K
6.21 mi11:43:2253:148:3427:09
8:44
#18317
15K
9.32 mi12:12:041:21:568:4728:42
9:14
#19562
20K
12.43 mi12:44:111:54:039:1132:07
10:20
#21106
Half
13.11 mi12:50:512:00:439:126:40
9:46
#21211
25K
15.53 mi13:18:142:28:069:3227:23
11:18
#21990
30K
18.64 mi13:57:323:07:2410:0339:18
12:39
#22914
20M
20.00 mi14:14:453:24:3710:1417:13
12:40
#23149
21M
21.00 mi14:30:083:40:0010:2915:23
15:23
#23444
35K
21.75 mi14:38:413:48:3310:318:33
11:26
#23467
23M
23.00 mi14:53:284:03:2010:3514:47
11:48
#23502
24M
24.00 mi15:04:594:14:5110:3711:31
11:31
#23530
40K
24.85 mi15:14:434:24:3510:399:44
11:23
#23514
25.2M
25.20 mi15:18:474:28:3910:404:04
11:48
#23495
Finish
26.22 mi15:29:204:39:1210:3910:33
10:21
#23471
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi168675840584021443(Top 81%)8474(Top 74%)8474(Top 466%)
10K6.21 mi3.10 mi18317-14506711-8716711-87119642(Top 74%)7477(Top 65%)7477(Top 412%)
15K9.32 mi3.11 mi19562-12457487-7767487-77621443(Top 81%)8474(Top 74%)8474(Top 466%)
20K12.43 mi3.11 mi21106-15448333-8468333-84623544(Top 88%)9656(Top 85%)9656(Top 531%)
Half13.11 mi0.68 mi21211-1058380-478380-4722824(Top 86%)9261(Top 81%)9261(Top 510%)
25K15.53 mi2.42 mi21990-7798825-4458825-44524392(Top 92%)10165(Top 89%)10165(Top 559%)
30K18.64 mi3.11 mi22914-9249336-5119336-51125136(Top 94%)10644(Top 93%)10644(Top 586%)
20M20.00 mi1.36 mi23149-2359471-1359471-13524892(Top 94%)10545(Top 92%)10545(Top 580%)
21M21.00 mi1.00 mi23444-2959636-1659636-16525948(Top 97%)11080(Top 97%)11080(Top 610%)
35K21.75 mi0.75 mi23467-239651-159651-1524005(Top 90%)10131(Top 89%)10131(Top 558%)
23M23.00 mi1.25 mi23502-359679-289679-2823732(Top 89%)9971(Top 87%)9971(Top 549%)
24M24.00 mi1.00 mi23530-289700-219700-2123899(Top 90%)10107(Top 88%)10107(Top 556%)
40K24.85 mi0.85 mi23514+169699+19699+123043(Top 87%)9682(Top 85%)9682(Top 533%)
25.2M25.20 mi0.35 mi23495+199698+19698+122167(Top 83%)9226(Top 81%)9226(Top 508%)
Finish26.22 mi1.02 mi23471+249693+59693+522705(Top 85%)9507(Top 83%)9507(Top 523%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 81%
×21stories
+97ft-345ft

Overall

21443

Females

8474

F45-49

8474

5K→10K

3.1 - 6.2 mi

Top 74%
×5stories
+79ft-138ft

Overall

19642

Females

7477

F45-49

7477

10K→15K

6.2 - 9.3 mi

Top 81%
×3stories
+67ft-78ft

Overall

21443

Females

8474

F45-49

8474

15K→20K

9.3 - 12.4 mi

Top 88%
×5stories
+106ft-86ft

Overall

23544

Females

9656

F45-49

9656

20K→Half

12.4 - 13.1 mi

Top 86%
×2stories
+19ft-37ft

Overall

22824

Females

9261

F45-49

9261

Half→25K

13.1 - 15.5 mi

Top 92%
×4stories
+66ft-88ft

Overall

24392

Females

10165

F45-49

10165

25K→30K

15.5 - 18.6 mi

Top 94%
×9stories
+181ft-148ft

Overall

25136

Females

10644

F45-49

10644

30K→20M

18.6 - 20.0 mi

Top 94%
×5stories
+64ft-50ft

Overall

24892

Females

10545

F45-49

10545

20M→21M

20.0 - 21.0 mi

Top 97%
×8stories
+106ft-24ft

Overall

25948

Females

11080

F45-49

11080

21M→35K

21.0 - 21.8 mi

Top 90%
×7stories
+17ft-86ft

Overall

24005

Females

10131

F45-49

10131

35K→23M

21.8 - 23.0 mi

Top 89%
×5stories
+23ft-63ft

Overall

23732

Females

9971

F45-49

9971

23M→24M

23.0 - 24.0 mi

Top 90%
×6stories
+12ft-82ft

Overall

23899

Females

10107

F45-49

10107

24M→40K

24.0 - 24.9 mi

Top 87%
×1story
+6ft-20ft

Overall

23043

Females

9682

F45-49

9682

40K→25.2M

24.9 - 25.2 mi

Top 83%
×1story
+13ft-16ft

Overall

22167

Females

9226

F45-49

9226

25.2M→Finish

25.2 - 26.2 mi

Top 85%
×2stories
+22ft-21ft

Overall

22705

Females

9507

F45-49

9507

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
282
Passed By
6886
Net Change
-6604
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#16867
5K → 10K331483-1450#16867#18317
10K → 15K131258-1245#18317#19562
15K → 20K101554-1544#19562#21106
20K → Half4109-105#21106#21211
Half → 25K7786-779#21211#21990
25K → 30K8932-924#21990#22914
30K → 20M21256-235#22914#23149
20M → 21M2297-295#23149#23444
21M → 35K2245-23#23444#23467
35K → 23M3267-35#23467#23502
23M → 24M2048-28#23502#23530
24M → 40K3620+16#23530#23514
40K → 25.2M278+19#23514#23495
25.2M → Finish4723+24#23495#23471
TOTALS2826886-6604
📊

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