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BOSTON MARATHON 2026

Caralei Peters Wiersma

Bib: 23811•F

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Masters (Masters Women)
#0 / 6862
Top 48%
Age Group (F50-54)
#0 / 1233
Top 48%
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
26:38
3.11 mi
Rank: #20484
Start → 5K
26:38 | 8:35/mi
10K
53:10
6.21 mi
Rank: #20482 (+2)
5K → 10K
26:32 | 8:33/mi
15K
1:19:46
9.32 mi
Rank: #20477 (+5)
10K → 15K
26:36 | 8:34/mi
20K
1:46:23
12.43 mi
Rank: #20241 (+236)
15K → 20K
26:37 | 8:35/mi
HALF
1:52:07
13.11 mi
Rank: #20214 (+27)
20K → HALF
5:44 | 8:25/mi
25K
2:12:49
15.53 mi
Rank: #20004 (+210)
HALF → 25K
20:42 | 8:33/mi
30K
2:39:50
18.64 mi
Rank: #19649 (+355)
25K → 30K
27:01 | 8:42/mi
20M
2:51:45
20.00 mi
Rank: #19491 (+158)
30K → 20M
11:55 | 8:47/mi
21M
3:01:06
21.00 mi
Rank: #19385 (+106)
20M → 21M
9:21 | 9:21/mi
35K
3:07:30
21.75 mi
Rank: #19319 (+66)
21M → 35K
6:24 | 8:34/mi
23M
3:18:27
23.00 mi
Rank: #19212 (+107)
35K → 23M
10:57 | 8:45/mi
24M
3:26:58
24.00 mi
Rank: #19098 (+114)
23M → 24M
8:31 | 8:31/mi
40K
3:34:30
24.85 mi
Rank: #19026 (+72)
24M → 40K
7:32 | 8:49/mi
25.2M
3:37:44
25.20 mi
Rank: #18980 (+46)
40K → 25.2M
3:14 | 9:23/mi
FINISH
3:46:30
26.22 mi
Rank: #18968 (+12)
25.2M → FINISH
8:46 | 8:37/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:52:07
Pace8:34 /mi
2nd Half
Distance13.11 mi
Time1:54:23
Pace8:44 /mi
📊Positive Split: 2.0% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:29:4026:388:3526:38
8:35
-
10K
6.21 mi11:56:1253:108:3426:32
8:33
-0:02
15K
9.32 mi12:22:481:19:468:3426:36
8:34
+0:01
20K
12.43 mi12:49:251:46:238:3426:37
8:35
+0:01
HALF
13.11 mi12:55:091:52:078:345:44
8:25
-0:10
25K
15.53 mi13:15:512:12:498:3320:42
8:33
+0:08
30K
18.64 mi13:42:522:39:508:3527:01
8:42
+0:09
20M
20.00 mi13:54:472:51:458:3611:55
8:47
+0:05
21M
21.00 mi14:04:083:01:068:389:21
9:21
+0:34
35K
21.75 mi14:10:323:07:308:386:24
8:34
-0:47
23M
23.00 mi14:21:293:18:278:3810:57
8:45
+0:11
24M
24.00 mi14:30:003:26:588:388:31
8:31
-0:14
40K
24.85 mi14:37:323:34:308:387:32
8:49
+0:18
25.2M
25.20 mi14:40:463:37:448:393:14
9:23
+0:34
FINISH
26.22 mi14:49:323:46:308:398:46
8:37
-0:46

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

8:25 /mi

Average Pace

8:39 /mi

Slowest Pace

9:23 /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

3:33:55

94% of race

Time at Steady Pace

12:35

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:38 /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 mi11:29:4026:388:3526:38
8:35
#20484
10K
6.21 mi11:56:1253:108:3426:32
8:33
#20482
15K
9.32 mi12:22:481:19:468:3426:36
8:34
#20477
20K
12.43 mi12:49:251:46:238:3426:37
8:35
#20241
HALF
13.11 mi12:55:091:52:078:345:44
8:25
#20214
25K
15.53 mi13:15:512:12:498:3320:42
8:33
#20004
30K
18.64 mi13:42:522:39:508:3527:01
8:42
#19649
20M
20.00 mi13:54:472:51:458:3611:55
8:47
#19491
21M
21.00 mi14:04:083:01:068:389:21
9:21
#19385
35K
21.75 mi14:10:323:07:308:386:24
8:34
#19319
23M
23.00 mi14:21:293:18:278:3810:57
8:45
#19212
24M
24.00 mi14:30:003:26:588:388:31
8:31
#19098
40K
24.85 mi14:37:323:34:308:387:32
8:49
#19026
25.2M
25.20 mi14:40:463:37:448:393:14
9:23
#18980
FINISH
26.22 mi14:49:323:46:308:398:46
8:37
#18968
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 mi204847905790520476(Top 71%)7830(Top 62%)7830(Top 635%)
10K6.21 mi3.10 mi20482+27872+337872+3320566(Top 71%)7893(Top 63%)7893(Top 640%)
15K9.32 mi3.11 mi20477+57854+187854+1820476(Top 71%)7830(Top 62%)7830(Top 635%)
20K12.43 mi3.11 mi20241+2367754+1007754+10019694(Top 68%)7459(Top 59%)7459(Top 605%)
HALF13.11 mi0.68 mi20214+277743+117743+1119761(Top 68%)7451(Top 59%)7451(Top 604%)
25K15.53 mi2.42 mi20004+2107636+1077636+10718790(Top 65%)7008(Top 56%)7008(Top 568%)
30K18.64 mi3.11 mi19649+3557464+1727464+17218011(Top 62%)6678(Top 53%)6678(Top 542%)
20M20.00 mi1.36 mi19491+1587398+667398+6617841(Top 61%)6668(Top 53%)6668(Top 541%)
21M21.00 mi1.00 mi19385+1067358+407358+4017880(Top 62%)6730(Top 54%)6730(Top 546%)
35K21.75 mi0.75 mi19319+667323+357323+3517923(Top 62%)6857(Top 55%)6857(Top 556%)
23M23.00 mi1.25 mi19212+1077292+317292+3117215(Top 59%)6547(Top 52%)6547(Top 531%)
24M24.00 mi1.00 mi19098+1147251+417251+4117046(Top 59%)6507(Top 52%)6507(Top 528%)
40K24.85 mi0.85 mi19026+727228+237228+2317478(Top 60%)6776(Top 54%)6776(Top 550%)
25.2M25.20 mi0.35 mi18980+467208+207208+2016806(Top 58%)6412(Top 51%)6412(Top 520%)
FINISH26.22 mi1.02 mi18968+127212-47212-418694(Top 64%)7400(Top 59%)7400(Top 600%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 71%
×21
+97ft-345ft

Overall

20476

Females

7830

F50-54

7830

5K→10K

3.1 - 6.2 mi

Top 71%
×5
+79ft-138ft

Overall

20566

Females

7893

F50-54

7893

10K→15K

6.2 - 9.3 mi

Top 71%
×3
+67ft-78ft

Overall

20476

Females

7830

F50-54

7830

15K→20K

9.3 - 12.4 mi

Top 68%
×5
+106ft-86ft

Overall

19694

Females

7459

F50-54

7459

20K→HALF

12.4 - 13.1 mi

Top 68%
×2
+19ft-37ft

Overall

19761

Females

7451

F50-54

7451

HALF→25K

13.1 - 15.5 mi

Top 65%
×4
+66ft-88ft

Overall

18790

Females

7008

F50-54

7008

25K→30K

15.5 - 18.6 mi

Top 62%
×9
+181ft-148ft

Overall

18011

Females

6678

F50-54

6678

30K→20M

18.6 - 20.0 mi

Top 61%
×5
+64ft-50ft

Overall

17841

Females

6668

F50-54

6668

20M→21M

20.0 - 21.0 mi

Top 62%
×8
+106ft-24ft

Overall

17880

Females

6730

F50-54

6730

21M→35K

21.0 - 21.8 mi

Top 62%
×7
+17ft-86ft

Overall

17923

Females

6857

F50-54

6857

35K→23M

21.8 - 23.0 mi

Top 59%
×5
+23ft-63ft

Overall

17215

Females

6547

F50-54

6547

23M→24M

23.0 - 24.0 mi

Top 59%
×6
+12ft-82ft

Overall

17046

Females

6507

F50-54

6507

24M→40K

24.0 - 24.9 mi

Top 60%
×1
+6ft-20ft

Overall

17478

Females

6776

F50-54

6776

40K→25.2M

24.9 - 25.2 mi

Top 58%
×1
+13ft-16ft

Overall

16806

Females

6412

F50-54

6412

25.2M→FINISH

25.2 - 26.2 mi

Top 64%
×2
+22ft-21ft

Overall

18694

Females

7400

F50-54

7400

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2278*
Passed By
762
Net Change
+1516
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20484
5K → 10K202*200+2#20484#20482
10K → 15K205*200+5#20482#20477
15K → 20K298*62+236#20477#20241
20K → HALF4013+27#20241#20214
HALF → 25K232*22+210#20214#20004
25K → 30K386*31+355#20004#19649
30K → 20M17517+158#19649#19491
20M → 21M14741+106#19491#19385
21M → 35K8822+66#19385#19319
35K → 23M14134+107#19319#19212
23M → 24M13420+114#19212#19098
24M → 40K9927+72#19098#19026
40K → 25.2M5913+46#19026#18980
25.2M → FINISH7260+12#18980#18968
TOTALS2278*762+1516

* 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