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BOSTON MARATHON 2026

Mia Cieslar

Bib: 11882•F

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0:00
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Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Age Group (F50-54)
#0 / 1233
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
26:16
3.11 mi
Rank: #19821
Start → 5K
26:16 | 8:28/mi
10K
52:30
6.21 mi
Rank: #19883 (-62)
5K → 10K
26:14 | 8:27/mi
15K
1:18:43
9.32 mi
Rank: #19826 (+57)
10K → 15K
26:13 | 8:27/mi
20K
1:45:45
12.43 mi
Rank: #19971 (-145)
15K → 20K
27:02 | 8:43/mi
HALF
1:51:35
13.11 mi
Rank: #20005 (-34)
20K → HALF
5:50 | 8:34/mi
25K
2:13:00
15.53 mi
Rank: #20074 (-69)
HALF → 25K
21:25 | 8:50/mi
30K
2:41:59
18.64 mi
Rank: #20269 (-195)
25K → 30K
28:59 | 9:20/mi
20M
2:54:52
20.00 mi
Rank: #20343 (-74)
30K → 20M
12:53 | 9:30/mi
21M
3:05:22
21.00 mi
Rank: #20468 (-125)
20M → 21M
10:30 | 10:30/mi
35K
3:12:29
21.75 mi
Rank: #20533 (-65)
21M → 35K
7:07 | 9:31/mi
23M
3:24:57
23.00 mi
Rank: #20664 (-131)
35K → 23M
12:28 | 9:58/mi
24M
3:34:53
24.00 mi
Rank: #20796 (-132)
23M → 24M
9:56 | 9:56/mi
40K
3:44:07
24.85 mi
Rank: #21007 (-211)
24M → 40K
9:14 | 10:48/mi
25.2M
3:48:49
25.20 mi
Rank: #21213 (-206)
40K → 25.2M
4:42 | 13:38/mi
FINISH
4:00:22
26.22 mi
Rank: #21616 (-403)
25.2M → FINISH
11:33 | 11:21/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:51:35
Pace8:31 /mi
2nd Half
Distance13.11 mi
Time2:08:47
Pace9:50 /mi
📊Positive Split: 15.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:47:2126:168:2826:16
8:28
-
10K
6.21 mi11:13:3552:308:2726:14
8:27
-0:01
15K
9.32 mi11:39:481:18:438:2726:13
8:27
0:00
20K
12.43 mi12:06:501:45:458:3127:02
8:43
+0:16
HALF
13.11 mi12:12:401:51:358:315:50
8:34
-0:09
25K
15.53 mi12:34:052:13:008:3421:25
8:50
+0:16
30K
18.64 mi13:03:042:41:598:4228:59
9:20
+0:30
20M
20.00 mi13:15:572:54:528:4512:53
9:30
+0:10
21M
21.00 mi13:26:273:05:228:5010:30
10:30
+1:00
35K
21.75 mi13:33:343:12:298:527:07
9:31
-0:59
23M
23.00 mi13:46:023:24:578:5512:28
9:58
+0:27
24M
24.00 mi13:55:583:34:538:589:56
9:56
-0:02
40K
24.85 mi14:05:123:44:079:029:14
10:48
+0:52
25.2M
25.20 mi14:09:543:48:499:054:42
13:38
+2:50
FINISH
26.22 mi14:21:274:00:229:1111:33
11:21
-2:17

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

8:27 /mi

Average Pace

9:10 /mi

Slowest Pace

13:38 /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

1:51:35

46% of race

Time at Steady Pace

1:32:48

39% of race

Time at Slower Pace

35:59

15% of race

Average Pace: 9:10 /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 mi10:47:2126:168:2826:16
8:28
#19821
10K
6.21 mi11:13:3552:308:2726:14
8:27
#19883
15K
9.32 mi11:39:481:18:438:2726:13
8:27
#19826
20K
12.43 mi12:06:501:45:458:3127:02
8:43
#19971
HALF
13.11 mi12:12:401:51:358:315:50
8:34
#20005
25K
15.53 mi12:34:052:13:008:3421:25
8:50
#20074
30K
18.64 mi13:03:042:41:598:4228:59
9:20
#20269
20M
20.00 mi13:15:572:54:528:4512:53
9:30
#20343
21M
21.00 mi13:26:273:05:228:5010:30
10:30
#20468
35K
21.75 mi13:33:343:12:298:527:07
9:31
#20533
23M
23.00 mi13:46:023:24:578:5512:28
9:58
#20664
24M
24.00 mi13:55:583:34:538:589:56
9:56
#20796
40K
24.85 mi14:05:123:44:079:029:14
10:48
#21007
25.2M
25.20 mi14:09:543:48:499:054:42
13:38
#21213
FINISH
26.22 mi14:21:274:00:229:1111:33
11:21
#21616
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi198217538753819791(Top 68%)7474(Top 59%)7474(Top 606%)
10K6.21 mi3.10 mi19883-627555-177555-1720051(Top 69%)7628(Top 61%)7628(Top 619%)
15K9.32 mi3.11 mi19826+577516+397516+3919791(Top 68%)7474(Top 59%)7474(Top 606%)
20K12.43 mi3.11 mi19971-1457616-1007616-10020467(Top 71%)7881(Top 63%)7881(Top 639%)
HALF13.11 mi0.68 mi20005-347639-237639-2320656(Top 71%)7956(Top 63%)7956(Top 645%)
25K15.53 mi2.42 mi20074-697675-367675-3620393(Top 70%)7867(Top 63%)7867(Top 638%)
30K18.64 mi3.11 mi20269-1957797-1227797-12221061(Top 73%)8293(Top 66%)8293(Top 673%)
20M20.00 mi1.36 mi20343-747845-487845-4821011(Top 72%)8353(Top 66%)8353(Top 677%)
21M21.00 mi1.00 mi20468-1257926-817926-8121982(Top 76%)8885(Top 71%)8885(Top 721%)
35K21.75 mi0.75 mi20533-657970-447970-4421814(Top 75%)8860(Top 70%)8860(Top 719%)
23M23.00 mi1.25 mi20664-1318046-768046-7622026(Top 76%)9006(Top 72%)9006(Top 730%)
24M24.00 mi1.00 mi20796-1328124-788124-7822617(Top 78%)9344(Top 74%)9344(Top 758%)
40K24.85 mi0.85 mi21007-2118243-1198243-11923831(Top 82%)10044(Top 80%)10044(Top 815%)
25.2M25.20 mi0.35 mi21213-2068357-1148357-11426843(Top 92%)11539(Top 92%)11539(Top 936%)
FINISH26.22 mi1.02 mi21616-4038570-2138570-21326652(Top 92%)11467(Top 91%)11467(Top 930%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21
+97ft-345ft

Overall

19791

Females

7474

F50-54

7474

5K→10K

3.1 - 6.2 mi

Top 69%
×5
+79ft-138ft

Overall

20051

Females

7628

F50-54

7628

10K→15K

6.2 - 9.3 mi

Top 68%
×3
+67ft-78ft

Overall

19791

Females

7474

F50-54

7474

15K→20K

9.3 - 12.4 mi

Top 71%
×5
+106ft-86ft

Overall

20467

Females

7881

F50-54

7881

20K→HALF

12.4 - 13.1 mi

Top 71%
×2
+19ft-37ft

Overall

20656

Females

7956

F50-54

7956

HALF→25K

13.1 - 15.5 mi

Top 70%
×4
+66ft-88ft

Overall

20393

Females

7867

F50-54

7867

25K→30K

15.5 - 18.6 mi

Top 73%
×9
+181ft-148ft

Overall

21061

Females

8293

F50-54

8293

30K→20M

18.6 - 20.0 mi

Top 72%
×5
+64ft-50ft

Overall

21011

Females

8353

F50-54

8353

20M→21M

20.0 - 21.0 mi

Top 76%
×8
+106ft-24ft

Overall

21982

Females

8885

F50-54

8885

21M→35K

21.0 - 21.8 mi

Top 75%
×7
+17ft-86ft

Overall

21814

Females

8860

F50-54

8860

35K→23M

21.8 - 23.0 mi

Top 76%
×5
+23ft-63ft

Overall

22026

Females

9006

F50-54

9006

23M→24M

23.0 - 24.0 mi

Top 78%
×6
+12ft-82ft

Overall

22617

Females

9344

F50-54

9344

24M→40K

24.0 - 24.9 mi

Top 82%
×1
+6ft-20ft

Overall

23831

Females

10044

F50-54

10044

40K→25.2M

24.9 - 25.2 mi

Top 92%
×1
+13ft-16ft

Overall

26843

Females

11539

F50-54

11539

25.2M→FINISH

25.2 - 26.2 mi

Top 92%
×2
+22ft-21ft

Overall

26652

Females

11467

F50-54

11467

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
982
Passed By
2277
Net Change
-1795
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19821
5K → 10K200200-62#19821#19883
10K → 15K192135+57#19883#19826
15K → 20K115200-145#19826#19971
20K → HALF1044-34#19971#20005
HALF → 25K100169-69#20005#20074
25K → 30K135200-195#20074#20269
30K → 20M61135-74#20269#20343
20M → 21M48173-125#20343#20468
21M → 35K2893-65#20468#20533
35K → 23M36167-131#20533#20664
23M → 24M29161-132#20664#20796
24M → 40K22200-211#20796#21007
40K → 25.2M3200-206#21007#21213
25.2M → FINISH3200-403#21213#21616
TOTALS9822277-1795
📊

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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Qualifying & Age Grade

See how your performance stacks up against qualifying standards

OTQ

Olympic Trials Qualifying analysis available

Activity Data

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing