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BOSTON MARATHON 2026

Aydan Tasdemir

Bib: 18884•F

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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 38%
Age Group (F18-39)
#0 / 5716
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
23:46
3.11 mi
Rank: #14131
Start → 5K
23:46 | 7:39/mi
10K
47:37
6.21 mi
Rank: #14294 (-163)
5K → 10K
23:51 | 7:41/mi
15K
1:11:29
9.32 mi
Rank: #14279 (+15)
10K → 15K
23:52 | 7:41/mi
20K
1:36:04
12.43 mi
Rank: #14564 (-285)
15K → 20K
24:35 | 7:55/mi
HALF
1:41:24
13.11 mi
Rank: #14623 (-59)
20K → HALF
5:20 | 7:50/mi
25K
2:00:55
15.53 mi
Rank: #14803 (-180)
HALF → 25K
19:31 | 8:03/mi
30K
2:26:26
18.64 mi
Rank: #14810 (-7)
25K → 30K
25:31 | 8:13/mi
20M
2:37:40
20.00 mi
Rank: #14797 (+13)
30K → 20M
11:14 | 8:17/mi
21M
2:46:31
21.00 mi
Rank: #14784 (+13)
20M → 21M
8:51 | 8:51/mi
35K
2:52:25
21.75 mi
Rank: #14737 (+47)
21M → 35K
5:54 | 7:54/mi
23M
3:02:38
23.00 mi
Rank: #14650 (+87)
35K → 23M
10:13 | 8:10/mi
24M
3:10:45
24.00 mi
Rank: #14645 (+5)
23M → 24M
8:07 | 8:07/mi
40K
3:17:41
24.85 mi
Rank: #14594 (+51)
24M → 40K
6:56 | 8:07/mi
25.2M
3:20:47
25.20 mi
Rank: #14584 (+10)
40K → 25.2M
3:06 | 9:00/mi
FINISH
3:28:51
26.22 mi
Rank: #14594 (-10)
25.2M → FINISH
8:04 | 7:55/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:41:24
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:47:27
Pace8:12 /mi
📊Positive Split: 6.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:10:3323:467:3923:46
7:39
-
10K
6.21 mi11:34:2447:377:4023:51
7:41
+0:02
15K
9.32 mi11:58:161:11:297:4123:52
7:41
0:00
20K
12.43 mi12:22:511:36:047:4424:35
7:55
+0:14
HALF
13.11 mi12:28:111:41:247:455:20
7:50
-0:05
25K
15.53 mi12:47:422:00:557:4819:31
8:03
+0:13
30K
18.64 mi13:13:132:26:267:5225:31
8:13
+0:10
20M
20.00 mi13:24:272:37:407:5411:14
8:17
+0:04
21M
21.00 mi13:33:182:46:317:568:51
8:51
+0:34
35K
21.75 mi13:39:122:52:257:565:54
7:54
-0:57
23M
23.00 mi13:49:253:02:387:5710:13
8:10
+0:16
24M
24.00 mi13:57:323:10:457:578:07
8:07
-0:03
40K
24.85 mi14:04:283:17:417:586:56
8:07
0:00
25.2M
25.20 mi14:07:343:20:477:593:06
9:00
+0:53
FINISH
26.22 mi14:15:383:28:517:598:04
7:55
-1:05

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

7:39 /mi

Average Pace

7:58 /mi

Slowest Pace

9:00 /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

3:16:54

94% of race

Time at Steady Pace

11:57

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:58 /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 mi11:10:3323:467:3923:46
7:39
#14131
10K
6.21 mi11:34:2447:377:4023:51
7:41
#14294
15K
9.32 mi11:58:161:11:297:4123:52
7:41
#14279
20K
12.43 mi12:22:511:36:047:4424:35
7:55
#14564
HALF
13.11 mi12:28:111:41:247:455:20
7:50
#14623
25K
15.53 mi12:47:422:00:557:4819:31
8:03
#14803
30K
18.64 mi13:13:132:26:267:5225:31
8:13
#14810
20M
20.00 mi13:24:272:37:407:5411:14
8:17
#14797
21M
21.00 mi13:33:182:46:317:568:51
8:51
#14784
35K
21.75 mi13:39:122:52:257:565:54
7:54
#14737
23M
23.00 mi13:49:253:02:387:5710:13
8:10
#14650
24M
24.00 mi13:57:323:10:457:578:07
8:07
#14645
40K
24.85 mi14:04:283:17:417:586:56
8:07
#14594
25.2M
25.20 mi14:07:343:20:477:593:06
9:00
#14584
FINISH
26.22 mi14:15:383:28:517:598:04
7:55
#14594
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi141314151415114396(Top 50%)4381(Top 35%)4381(Top 77%)
10K6.21 mi3.10 mi14294-1634272-1214272-12114567(Top 50%)4441(Top 35%)4441(Top 78%)
15K9.32 mi3.11 mi14279+154290-184290-1814396(Top 50%)4381(Top 35%)4381(Top 77%)
20K12.43 mi3.11 mi14564-2854464-1744464-17415447(Top 53%)5054(Top 40%)5054(Top 88%)
HALF13.11 mi0.68 mi14623-594496-324496-3215776(Top 54%)5193(Top 41%)5193(Top 91%)
25K15.53 mi2.42 mi14803-1804635-1394635-13915769(Top 54%)5284(Top 42%)5284(Top 92%)
30K18.64 mi3.11 mi14810-74678-434678-4315013(Top 52%)4981(Top 40%)4981(Top 87%)
20M20.00 mi1.36 mi14797+134707-294707-2914741(Top 51%)4893(Top 39%)4893(Top 86%)
21M21.00 mi1.00 mi14784+134728-214728-2115282(Top 53%)5286(Top 42%)5286(Top 92%)
35K21.75 mi0.75 mi14737+474714+144714+1413744(Top 47%)4496(Top 36%)4496(Top 79%)
23M23.00 mi1.25 mi14650+874689+254689+2513570(Top 47%)4481(Top 36%)4481(Top 78%)
24M24.00 mi1.00 mi14645+54714-254714-2514557(Top 50%)5091(Top 40%)5091(Top 89%)
40K24.85 mi0.85 mi14594+514697+174697+1713238(Top 46%)4461(Top 35%)4461(Top 78%)
25.2M25.20 mi0.35 mi14584+104704-74704-714695(Top 51%)5264(Top 42%)5264(Top 92%)
FINISH26.22 mi1.02 mi14594-104723-194723-1914629(Top 50%)5237(Top 42%)5237(Top 92%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21
+97ft-345ft

Overall

14396

Females

4381

F18-39

4381

5K→10K

3.1 - 6.2 mi

Top 50%
×5
+79ft-138ft

Overall

14567

Females

4441

F18-39

4441

10K→15K

6.2 - 9.3 mi

Top 50%
×3
+67ft-78ft

Overall

14396

Females

4381

F18-39

4381

15K→20K

9.3 - 12.4 mi

Top 53%
×5
+106ft-86ft

Overall

15447

Females

5054

F18-39

5054

20K→HALF

12.4 - 13.1 mi

Top 54%
×2
+19ft-37ft

Overall

15776

Females

5193

F18-39

5193

HALF→25K

13.1 - 15.5 mi

Top 54%
×4
+66ft-88ft

Overall

15769

Females

5284

F18-39

5284

25K→30K

15.5 - 18.6 mi

Top 52%
×9
+181ft-148ft

Overall

15013

Females

4981

F18-39

4981

30K→20M

18.6 - 20.0 mi

Top 51%
×5
+64ft-50ft

Overall

14741

Females

4893

F18-39

4893

20M→21M

20.0 - 21.0 mi

Top 53%
×8
+106ft-24ft

Overall

15282

Females

5286

F18-39

5286

21M→35K

21.0 - 21.8 mi

Top 47%
×7
+17ft-86ft

Overall

13744

Females

4496

F18-39

4496

35K→23M

21.8 - 23.0 mi

Top 47%
×5
+23ft-63ft

Overall

13570

Females

4481

F18-39

4481

23M→24M

23.0 - 24.0 mi

Top 50%
×6
+12ft-82ft

Overall

14557

Females

5091

F18-39

5091

24M→40K

24.0 - 24.9 mi

Top 46%
×1
+6ft-20ft

Overall

13238

Females

4461

F18-39

4461

40K→25.2M

24.9 - 25.2 mi

Top 51%
×1
+13ft-16ft

Overall

14695

Females

5264

F18-39

5264

25.2M→FINISH

25.2 - 26.2 mi

Top 50%
×2
+22ft-21ft

Overall

14629

Females

5237

F18-39

5237

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1490*
Passed By
1539
Net Change
-463
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14131
5K → 10K200200-163#14131#14294
10K → 15K211*196+15#14294#14279
15K → 20K95200-285#14279#14564
20K → HALF1069-59#14564#14623
HALF → 25K91200-180#14623#14803
25K → 30K192199-7#14803#14810
30K → 20M10996+13#14810#14797
20M → 21M10289+13#14797#14784
21M → 35K8033+47#14784#14737
35K → 23M13952+87#14737#14650
23M → 24M7974+5#14650#14645
24M → 40K8837+51#14645#14594
40K → 25.2M3727+10#14594#14584
25.2M → FINISH5767-10#14584#14594
TOTALS1490*1539-463

* 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