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BOSTON MARATHON 2026

Carolina Fonseca

Bib: 19167•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
24:57
3.11 mi
Rank: #17162
Start → 5K
24:57 | 8:02/mi
10K
49:25
6.21 mi
Rank: #16733 (+429)
5K → 10K
24:28 | 7:53/mi
15K
1:14:07
9.32 mi
Rank: #16701 (+32)
10K → 15K
24:42 | 7:58/mi
20K
1:39:16
12.43 mi
Rank: #16709 (-8)
15K → 20K
25:09 | 8:06/mi
HALF
1:44:37
13.11 mi
Rank: #16667 (+42)
20K → HALF
5:21 | 7:51/mi
25K
2:04:10
15.53 mi
Rank: #16490 (+177)
HALF → 25K
19:33 | 8:04/mi
30K
2:29:24
18.64 mi
Rank: #16107 (+383)
25K → 30K
25:14 | 8:08/mi
20M
2:40:23
20.00 mi
Rank: #15887 (+220)
30K → 20M
10:59 | 8:06/mi
21M
2:48:31
21.00 mi
Rank: #15554 (+333)
20M → 21M
8:08 | 8:08/mi
35K
2:54:22
21.75 mi
Rank: #15434 (+120)
21M → 35K
5:51 | 7:50/mi
23M
3:04:07
23.00 mi
Rank: #15170 (+264)
35K → 23M
9:45 | 7:48/mi
24M
3:12:06
24.00 mi
Rank: #15080 (+90)
23M → 24M
7:59 | 7:59/mi
40K
3:18:51
24.85 mi
Rank: #14932 (+148)
24M → 40K
6:45 | 7:54/mi
25.2M
3:21:47
25.20 mi
Rank: #14881 (+51)
40K → 25.2M
2:56 | 8:31/mi
FINISH
3:29:26
26.22 mi
Rank: #14759 (+122)
25.2M → FINISH
7:39 | 7:31/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:44:37
Pace7:59 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:44:49
Pace8:00 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:08:4024:578:0224:57
8:02
-
10K
6.21 mi11:33:0849:257:5824:28
7:53
-0:09
15K
9.32 mi11:57:501:14:077:5824:42
7:58
+0:05
20K
12.43 mi12:22:591:39:168:0025:09
8:06
+0:08
HALF
13.11 mi12:28:201:44:377:595:21
7:51
-0:15
25K
15.53 mi12:47:532:04:108:0019:33
8:04
+0:13
30K
18.64 mi13:13:072:29:248:0125:14
8:08
+0:04
20M
20.00 mi13:24:062:40:238:0210:59
8:06
-0:02
21M
21.00 mi13:32:142:48:318:028:08
8:08
+0:02
35K
21.75 mi13:38:052:54:228:025:51
7:50
-0:18
23M
23.00 mi13:47:503:04:078:019:45
7:48
-0:02
24M
24.00 mi13:55:493:12:068:017:59
7:59
+0:11
40K
24.85 mi14:02:343:18:518:016:45
7:54
-0:05
25.2M
25.20 mi14:05:303:21:478:012:56
8:31
+0:37
FINISH
26.22 mi14:13:093:29:268:007:39
7:31
-1:00

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

8:00 /mi

Slowest Pace

8:31 /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

3:26:30

99% of race

Time at Steady Pace

2:56

1% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:59 /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 mi11:08:4024:578:0224:57
8:02
#17162
10K
6.21 mi11:33:0849:257:5824:28
7:53
#16733
15K
9.32 mi11:57:501:14:077:5824:42
7:58
#16701
20K
12.43 mi12:22:591:39:168:0025:09
8:06
#16709
HALF
13.11 mi12:28:201:44:377:595:21
7:51
#16667
25K
15.53 mi12:47:532:04:108:0019:33
8:04
#16490
30K
18.64 mi13:13:072:29:248:0125:14
8:08
#16107
20M
20.00 mi13:24:062:40:238:0210:59
8:06
#15887
21M
21.00 mi13:32:142:48:318:028:08
8:08
#15554
35K
21.75 mi13:38:052:54:228:025:51
7:50
#15434
23M
23.00 mi13:47:503:04:078:019:45
7:48
#15170
24M
24.00 mi13:55:493:12:068:017:59
7:59
#15080
40K
24.85 mi14:02:343:18:518:016:45
7:54
#14932
25.2M
25.20 mi14:05:303:21:478:012:56
8:31
#14881
FINISH
26.22 mi14:13:093:29:268:007:39
7:31
#14759
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 mi171626014601416614(Top 57%)5676(Top 45%)5676(Top 99%)
10K6.21 mi3.10 mi16733+4295775+2395775+23916258(Top 56%)5467(Top 43%)5467(Top 96%)
15K9.32 mi3.11 mi16701+325746+295746+2916614(Top 57%)5676(Top 45%)5676(Top 99%)
20K12.43 mi3.11 mi16709-85757-115757-1116825(Top 58%)5831(Top 46%)5831(Top 102%)
HALF13.11 mi0.68 mi16667+425738+195738+1915978(Top 55%)5313(Top 42%)5313(Top 93%)
25K15.53 mi2.42 mi16490+1775638+1005638+10015868(Top 55%)5339(Top 42%)5339(Top 93%)
30K18.64 mi3.11 mi16107+3835469+1695469+16914375(Top 50%)4620(Top 37%)4620(Top 81%)
20M20.00 mi1.36 mi15887+2205353+1165353+11613463(Top 46%)4213(Top 33%)4213(Top 74%)
21M21.00 mi1.00 mi15554+3335171+1825171+18210838(Top 37%)2928(Top 23%)2928(Top 51%)
35K21.75 mi0.75 mi15434+1205123+485123+4813283(Top 46%)4254(Top 34%)4254(Top 74%)
23M23.00 mi1.25 mi15170+2644993+1304993+13011010(Top 38%)3128(Top 25%)3128(Top 55%)
24M24.00 mi1.00 mi15080+904961+324961+3213680(Top 47%)4610(Top 37%)4610(Top 81%)
40K24.85 mi0.85 mi14932+1484895+664895+6611804(Top 41%)3685(Top 29%)3685(Top 64%)
25.2M25.20 mi0.35 mi14881+514875+204875+2011775(Top 41%)3762(Top 30%)3762(Top 66%)
FINISH26.22 mi1.02 mi14759+1224824+514824+5111517(Top 40%)3624(Top 29%)3624(Top 63%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 57%
×21
+97ft-345ft

Overall

16614

Females

5676

F18-39

5676

5K→10K

3.1 - 6.2 mi

Top 56%
×5
+79ft-138ft

Overall

16258

Females

5467

F18-39

5467

10K→15K

6.2 - 9.3 mi

Top 57%
×3
+67ft-78ft

Overall

16614

Females

5676

F18-39

5676

15K→20K

9.3 - 12.4 mi

Top 58%
×5
+106ft-86ft

Overall

16825

Females

5831

F18-39

5831

20K→HALF

12.4 - 13.1 mi

Top 55%
×2
+19ft-37ft

Overall

15978

Females

5313

F18-39

5313

HALF→25K

13.1 - 15.5 mi

Top 55%
×4
+66ft-88ft

Overall

15868

Females

5339

F18-39

5339

25K→30K

15.5 - 18.6 mi

Top 50%
×9
+181ft-148ft

Overall

14375

Females

4620

F18-39

4620

30K→20M

18.6 - 20.0 mi

Top 46%
×5
+64ft-50ft

Overall

13463

Females

4213

F18-39

4213

20M→21M

20.0 - 21.0 mi

Top 37%
×8
+106ft-24ft

Overall

10838

Females

2928

F18-39

2928

21M→35K

21.0 - 21.8 mi

Top 46%
×7
+17ft-86ft

Overall

13283

Females

4254

F18-39

4254

35K→23M

21.8 - 23.0 mi

Top 38%
×5
+23ft-63ft

Overall

11010

Females

3128

F18-39

3128

23M→24M

23.0 - 24.0 mi

Top 47%
×6
+12ft-82ft

Overall

13680

Females

4610

F18-39

4610

24M→40K

24.0 - 24.9 mi

Top 41%
×1
+6ft-20ft

Overall

11804

Females

3685

F18-39

3685

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1
+13ft-16ft

Overall

11775

Females

3762

F18-39

3762

25.2M→FINISH

25.2 - 26.2 mi

Top 40%
×2
+22ft-21ft

Overall

11517

Females

3624

F18-39

3624

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3090
Passed By
687
Net Change
+2403
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17162
5K → 10K562133+429#17162#16733
10K → 15K212180+32#16733#16701
15K → 20K173181-8#16701#16709
20K → HALF5614+42#16709#16667
HALF → 25K22245+177#16667#16490
25K → 30K41734+383#16490#16107
30K → 20M2299+220#16107#15887
20M → 21M3363+333#15887#15554
21M → 35K13111+120#15554#15434
35K → 23M2728+264#15434#15170
23M → 24M12535+90#15170#15080
24M → 40K15810+148#15080#14932
40K → 25.2M6110+51#14932#14881
25.2M → FINISH13614+122#14881#14759
TOTALS3090687+2403
📊

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