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BOSTON MARATHON 2026

Mackenzie Carlson

Bib: 5774•F

MA

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 10%
Gender (Female)
#0 / 12578
Top 1%
Age Group (F18-39)
#0 / 5716
Top 2%
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
19:37
3.11 mi
Rank: #2828
Start → 5K
19:37 | 6:19/mi
10K
39:31
6.21 mi
Rank: #3176 (-348)
5K → 10K
19:54 | 6:25/mi
15K
59:06
9.32 mi
Rank: #3057 (+119)
10K → 15K
19:35 | 6:19/mi
20K
1:19:08
12.43 mi
Rank: #3163 (-106)
15K → 20K
20:02 | 6:27/mi
HALF
1:23:33
13.11 mi
Rank: #3206 (-43)
20K → HALF
4:25 | 6:29/mi
25K
1:39:35
15.53 mi
Rank: #3320 (-114)
HALF → 25K
16:02 | 6:37/mi
30K
2:00:32
18.64 mi
Rank: #3394 (-74)
25K → 30K
20:57 | 6:45/mi
20M
2:09:35
20.00 mi
Rank: #3362 (+32)
30K → 20M
9:03 | 6:40/mi
21M
2:16:33
21.00 mi
Rank: #3328 (+34)
20M → 21M
6:58 | 6:58/mi
35K
2:21:18
21.75 mi
Rank: #3302 (+26)
21M → 35K
4:45 | 6:21/mi
23M
2:29:25
23.00 mi
Rank: #3199 (+103)
35K → 23M
8:07 | 6:30/mi
24M
2:35:51
24.00 mi
Rank: #3139 (+60)
23M → 24M
6:26 | 6:26/mi
40K
2:41:21
24.85 mi
Rank: #3081 (+58)
24M → 40K
5:30 | 6:26/mi
25.2M
2:43:45
25.20 mi
Rank: #3052 (+29)
40K → 25.2M
2:24 | 6:58/mi
FINISH
2:49:57
26.22 mi
Rank: #2982 (+70)
25.2M → FINISH
6:12 | 6:06/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:23:33
Pace6:23 /mi
2nd Half
Distance13.11 mi
Time1:26:24
Pace6:36 /mi
📊Positive Split: 3.4% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:23:0319:376:1919:37
6:19
-
10K
6.21 mi10:42:5739:316:2219:54
6:25
+0:06
15K
9.32 mi11:02:3259:066:2119:35
6:19
-0:06
20K
12.43 mi11:22:341:19:086:2320:02
6:27
+0:08
HALF
13.11 mi11:26:591:23:336:234:25
6:29
+0:02
25K
15.53 mi11:43:011:39:356:2516:02
6:37
+0:08
30K
18.64 mi12:03:582:00:326:2820:57
6:45
+0:08
20M
20.00 mi12:13:012:09:356:299:03
6:40
-0:05
21M
21.00 mi12:19:592:16:336:316:58
6:58
+0:18
35K
21.75 mi12:24:442:21:186:304:45
6:21
-0:37
23M
23.00 mi12:32:512:29:256:308:07
6:30
+0:09
24M
24.00 mi12:39:172:35:516:306:26
6:26
-0:04
40K
24.85 mi12:44:472:41:216:305:30
6:26
0:00
25.2M
25.20 mi12:47:112:43:456:302:24
6:58
+0:32
FINISH
26.22 mi12:53:232:49:576:306:12
6:06
-0:52

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

6:06 /mi

Average Pace

6:29 /mi

Slowest Pace

6:58 /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

2:19:38

82% of race

Time at Steady Pace

30:19

18% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 6:29 /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 mi10:23:0319:376:1919:37
6:19
#2828
10K
6.21 mi10:42:5739:316:2219:54
6:25
#3176
15K
9.32 mi11:02:3259:066:2119:35
6:19
#3057
20K
12.43 mi11:22:341:19:086:2320:02
6:27
#3163
HALF
13.11 mi11:26:591:23:336:234:25
6:29
#3206
25K
15.53 mi11:43:011:39:356:2516:02
6:37
#3320
30K
18.64 mi12:03:582:00:326:2820:57
6:45
#3394
20M
20.00 mi12:13:012:09:356:299:03
6:40
#3362
21M
21.00 mi12:19:592:16:336:316:58
6:58
#3328
35K
21.75 mi12:24:442:21:186:304:45
6:21
#3302
23M
23.00 mi12:32:512:29:256:308:07
6:30
#3199
24M
24.00 mi12:39:172:35:516:306:26
6:26
#3139
40K
24.85 mi12:44:472:41:216:305:30
6:26
#3081
25.2M
25.20 mi12:47:112:43:456:302:24
6:58
#3052
FINISH
26.22 mi12:53:232:49:576:306:12
6:06
#2982
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 mi28281161162893(Top 10%)117(Top 0.9%)117(Top 2%)
10K6.21 mi3.10 mi3176-348132-16132-163590(Top 12%)166(Top 1%)166(Top 3%)
15K9.32 mi3.11 mi3057+119120+12120+122893(Top 10%)117(Top 0.9%)117(Top 2%)
20K12.43 mi3.11 mi3163-106129-9129-93449(Top 12%)149(Top 1%)149(Top 3%)
HALF13.11 mi0.68 mi3206-43130-1130-14321(Top 15%)228(Top 2%)228(Top 4%)
25K15.53 mi2.42 mi3320-114139-9139-94216(Top 15%)262(Top 2%)262(Top 5%)
30K18.64 mi3.11 mi3394-74148-9148-93967(Top 14%)270(Top 2%)270(Top 5%)
20M20.00 mi1.36 mi3362+32146+2146+23280(Top 11%)211(Top 2%)211(Top 4%)
21M21.00 mi1.00 mi3328+34147-1147-13297(Top 11%)245(Top 2%)245(Top 4%)
35K21.75 mi0.75 mi3302+26146+1146+12785(Top 10%)172(Top 1%)172(Top 3%)
23M23.00 mi1.25 mi3199+103140+6140+62371(Top 8%)138(Top 1%)138(Top 2%)
24M24.00 mi1.00 mi3139+60143-3143-32845(Top 10%)232(Top 2%)232(Top 4%)
40K24.85 mi0.85 mi3081+58141+2141+22296(Top 8%)159(Top 1%)159(Top 3%)
25.2M25.20 mi0.35 mi3052+29139+2139+22526(Top 9%)208(Top 2%)208(Top 4%)
FINISH26.22 mi1.02 mi2982+70136+3136+32010(Top 7%)144(Top 1%)144(Top 3%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 10%
×21
+97ft-345ft

Overall

2893

Females

117

F18-39

117

5K→10K

3.1 - 6.2 mi

Top 12%
×5
+79ft-138ft

Overall

3590

Females

166

F18-39

166

10K→15K

6.2 - 9.3 mi

Top 10%
×3
+67ft-78ft

Overall

2893

Females

117

F18-39

117

15K→20K

9.3 - 12.4 mi

Top 12%
×5
+106ft-86ft

Overall

3449

Females

149

F18-39

149

20K→HALF

12.4 - 13.1 mi

Top 15%
×2
+19ft-37ft

Overall

4321

Females

228

F18-39

228

HALF→25K

13.1 - 15.5 mi

Top 15%
×4
+66ft-88ft

Overall

4216

Females

262

F18-39

262

25K→30K

15.5 - 18.6 mi

Top 14%
×9
+181ft-148ft

Overall

3967

Females

270

F18-39

270

30K→20M

18.6 - 20.0 mi

Top 11%
×5
+64ft-50ft

Overall

3280

Females

211

F18-39

211

20M→21M

20.0 - 21.0 mi

Top 11%
×8
+106ft-24ft

Overall

3297

Females

245

F18-39

245

21M→35K

21.0 - 21.8 mi

Top 10%
×7
+17ft-86ft

Overall

2785

Females

172

F18-39

172

35K→23M

21.8 - 23.0 mi

Top 8%
×5
+23ft-63ft

Overall

2371

Females

138

F18-39

138

23M→24M

23.0 - 24.0 mi

Top 10%
×6
+12ft-82ft

Overall

2845

Females

232

F18-39

232

24M→40K

24.0 - 24.9 mi

Top 8%
×1
+6ft-20ft

Overall

2296

Females

159

F18-39

159

40K→25.2M

24.9 - 25.2 mi

Top 9%
×1
+13ft-16ft

Overall

2526

Females

208

F18-39

208

25.2M→FINISH

25.2 - 26.2 mi

Top 7%
×2
+22ft-21ft

Overall

2010

Females

144

F18-39

144

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
889
Passed By
857
Net Change
-154
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#2828
5K → 10K38200-348#2828#3176
10K → 15K15334+119#3176#3057
15K → 20K57163-106#3057#3163
20K → HALF447-43#3163#3206
HALF → 25K37151-114#3206#3320
25K → 30K70144-74#3320#3394
30K → 20M5321+32#3394#3362
20M → 21M6531+34#3362#3328
21M → 35K4418+26#3328#3302
35K → 23M1118+103#3302#3199
23M → 24M7717+60#3199#3139
24M → 40K679+58#3139#3081
40K → 25.2M334+29#3081#3052
25.2M → FINISH8010+70#3052#2982
TOTALS889857-154
📊

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