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BOSTON MARATHON 2026

Carolina Valenzuela

Bib: 20444•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 45%
Age Group (F45-49)
#0 / 1786
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
26:51
3.11 mi
Rank: #20867
Start → 5K
26:51 | 8:39/mi
10K
53:55
6.21 mi
Rank: #21195 (-328)
5K → 10K
27:04 | 8:43/mi
15K
1:20:55
9.32 mi
Rank: #21185 (+10)
10K → 15K
27:00 | 8:42/mi
20K
1:47:41
12.43 mi
Rank: #20861 (+324)
15K → 20K
26:46 | 8:37/mi
HALF
1:53:30
13.11 mi
Rank: #20838 (+23)
20K → HALF
5:49 | 8:32/mi
25K
2:14:27
15.53 mi
Rank: #20593 (+245)
HALF → 25K
20:57 | 8:39/mi
30K
2:41:42
18.64 mi
Rank: #20176 (+417)
25K → 30K
27:15 | 8:47/mi
20M
2:53:26
20.00 mi
Rank: #19961 (+215)
30K → 20M
11:44 | 8:39/mi
21M
3:02:14
21.00 mi
Rank: #19694 (+267)
20M → 21M
8:48 | 8:48/mi
35K
3:08:25
21.75 mi
Rank: #19580 (+114)
21M → 35K
6:11 | 8:16/mi
23M
3:18:30
23.00 mi
Rank: #19226 (+354)
35K → 23M
10:05 | 8:04/mi
24M
3:26:34
24.00 mi
Rank: #18992 (+234)
23M → 24M
8:04 | 8:04/mi
40K
3:33:25
24.85 mi
Rank: #18762 (+230)
24M → 40K
6:51 | 8:01/mi
25.2M
3:36:20
25.20 mi
Rank: #18663 (+99)
40K → 25.2M
2:55 | 8:28/mi
FINISH
3:43:59
26.22 mi
Rank: #18407 (+256)
25.2M → FINISH
7:39 | 7:31/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:53:30
Pace8:40 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:50:29
Pace8:26 /mi
📊Negative Split: 2.7% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:11:5726:518:3926:51
8:39
-
10K
6.21 mi11:39:0153:558:4127:04
8:43
+0:04
15K
9.32 mi12:06:011:20:558:4127:00
8:42
-0:01
20K
12.43 mi12:32:471:47:418:4026:46
8:37
-0:05
HALF
13.11 mi12:38:361:53:308:405:49
8:32
-0:05
25K
15.53 mi12:59:332:14:278:4020:57
8:39
+0:07
30K
18.64 mi13:26:482:41:428:4127:15
8:47
+0:08
20M
20.00 mi13:38:322:53:268:4111:44
8:39
-0:08
21M
21.00 mi13:47:203:02:148:418:48
8:48
+0:09
35K
21.75 mi13:53:313:08:258:406:11
8:16
-0:32
23M
23.00 mi14:03:363:18:308:3810:05
8:04
-0:12
24M
24.00 mi14:11:403:26:348:378:04
8:04
0:00
40K
24.85 mi14:18:313:33:258:366:51
8:01
-0:03
25.2M
25.20 mi14:21:263:36:208:362:55
8:28
+0:27
FINISH
26.22 mi14:29:053:43:598:337:39
7:31
-0:57

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

7:31 /mi

Average Pace

8:33 /mi

Slowest Pace

8:48 /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

38:50

17% of race

Time at Steady Pace

3:05:09

83% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:33 /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 mi11:11:5726:518:3926:51
8:39
#20867
10K
6.21 mi11:39:0153:558:4127:04
8:43
#21195
15K
9.32 mi12:06:011:20:558:4127:00
8:42
#21185
20K
12.43 mi12:32:471:47:418:4026:46
8:37
#20861
HALF
13.11 mi12:38:361:53:308:405:49
8:32
#20838
25K
15.53 mi12:59:332:14:278:4020:57
8:39
#20593
30K
18.64 mi13:26:482:41:428:4127:15
8:47
#20176
20M
20.00 mi13:38:322:53:268:4111:44
8:39
#19961
21M
21.00 mi13:47:203:02:148:418:48
8:48
#19694
35K
21.75 mi13:53:313:08:258:406:11
8:16
#19580
23M
23.00 mi14:03:363:18:308:3810:05
8:04
#19226
24M
24.00 mi14:11:403:26:348:378:04
8:04
#18992
40K
24.85 mi14:18:313:33:258:366:51
8:01
#18762
25.2M
25.20 mi14:21:263:36:208:362:55
8:28
#18663
FINISH
26.22 mi14:29:053:43:598:337:39
7:31
#18407
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 mi208678089808921141(Top 73%)8204(Top 65%)8204(Top 459%)
10K6.21 mi3.10 mi21195-3288249-1608249-16021482(Top 74%)8384(Top 67%)8384(Top 469%)
15K9.32 mi3.11 mi21185+108243+68243+621141(Top 73%)8204(Top 65%)8204(Top 459%)
20K12.43 mi3.11 mi20861+3248077+1668077+16619953(Top 69%)7591(Top 60%)7591(Top 425%)
HALF13.11 mi0.68 mi20838+238071+68071+620452(Top 70%)7814(Top 62%)7814(Top 438%)
25K15.53 mi2.42 mi20593+2457952+1197952+11919397(Top 67%)7343(Top 58%)7343(Top 411%)
30K18.64 mi3.11 mi20176+4177737+2157737+21518420(Top 63%)6898(Top 55%)6898(Top 386%)
20M20.00 mi1.36 mi19961+2157648+897648+8917045(Top 59%)6231(Top 50%)6231(Top 349%)
21M21.00 mi1.00 mi19694+2677529+1197529+11915027(Top 52%)5164(Top 41%)5164(Top 289%)
35K21.75 mi0.75 mi19580+1147477+527477+5216272(Top 56%)5918(Top 47%)5918(Top 331%)
23M23.00 mi1.25 mi19226+3547300+1777300+17712896(Top 44%)4101(Top 33%)4101(Top 230%)
24M24.00 mi1.00 mi18992+2347182+1187182+11814260(Top 49%)4952(Top 39%)4952(Top 277%)
40K24.85 mi0.85 mi18762+2307076+1067076+10612639(Top 44%)4154(Top 33%)4154(Top 233%)
25.2M25.20 mi0.35 mi18663+997021+557021+5511506(Top 40%)3662(Top 29%)3662(Top 205%)
FINISH26.22 mi1.02 mi18407+2566895+1266895+12611531(Top 40%)3638(Top 29%)3638(Top 204%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 73%
×21
+97ft-345ft

Overall

21141

Females

8204

F45-49

8204

5K→10K

3.1 - 6.2 mi

Top 74%
×5
+79ft-138ft

Overall

21482

Females

8384

F45-49

8384

10K→15K

6.2 - 9.3 mi

Top 73%
×3
+67ft-78ft

Overall

21141

Females

8204

F45-49

8204

15K→20K

9.3 - 12.4 mi

Top 69%
×5
+106ft-86ft

Overall

19953

Females

7591

F45-49

7591

20K→HALF

12.4 - 13.1 mi

Top 70%
×2
+19ft-37ft

Overall

20452

Females

7814

F45-49

7814

HALF→25K

13.1 - 15.5 mi

Top 67%
×4
+66ft-88ft

Overall

19397

Females

7343

F45-49

7343

25K→30K

15.5 - 18.6 mi

Top 63%
×9
+181ft-148ft

Overall

18420

Females

6898

F45-49

6898

30K→20M

18.6 - 20.0 mi

Top 59%
×5
+64ft-50ft

Overall

17045

Females

6231

F45-49

6231

20M→21M

20.0 - 21.0 mi

Top 52%
×8
+106ft-24ft

Overall

15027

Females

5164

F45-49

5164

21M→35K

21.0 - 21.8 mi

Top 56%
×7
+17ft-86ft

Overall

16272

Females

5918

F45-49

5918

35K→23M

21.8 - 23.0 mi

Top 44%
×5
+23ft-63ft

Overall

12896

Females

4101

F45-49

4101

23M→24M

23.0 - 24.0 mi

Top 49%
×6
+12ft-82ft

Overall

14260

Females

4952

F45-49

4952

24M→40K

24.0 - 24.9 mi

Top 44%
×1
+6ft-20ft

Overall

12639

Females

4154

F45-49

4154

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1
+13ft-16ft

Overall

11506

Females

3662

F45-49

3662

25.2M→FINISH

25.2 - 26.2 mi

Top 40%
×2
+22ft-21ft

Overall

11531

Females

3638

F45-49

3638

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3236
Passed By
776
Net Change
+2460
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#20867
5K → 10K151479-328#20867#21195
10K → 15K190180+10#21195#21185
15K → 20K35531+324#21185#20861
20K → HALF4320+23#20861#20838
HALF → 25K26924+245#20838#20593
25K → 30K43316+417#20593#20176
30K → 20M2249+215#20176#19961
20M → 21M2714+267#19961#19694
21M → 35K1173+114#19694#19580
35K → 23M3562+354#19580#19226
23M → 24M2384+234#19226#18992
24M → 40K2300+230#18992#18762
40K → 25.2M990+99#18762#18663
25.2M → FINISH2604+256#18663#18407
TOTALS3236776+2460
📊

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