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BOSTON MARATHON 2026

Erin Carlson

Bib: 20078•F

WI

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 50%
Masters (Masters Women)
#0 / 6862
Top 38%
Age Group (F40-44)
#0 / 1737
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
25:57
3.11 mi
Rank: #19215
Start → 5K
25:57 | 8:22/mi
10K
51:46
6.21 mi
Rank: #19217 (-2)
5K → 10K
25:49 | 8:19/mi
15K
1:17:40
9.32 mi
Rank: #19194 (+23)
10K → 15K
25:54 | 8:21/mi
20K
1:43:54
12.43 mi
Rank: #19143 (+51)
15K → 20K
26:14 | 8:27/mi
HALF
1:49:39
13.11 mi
Rank: #19171 (-28)
20K → HALF
5:45 | 8:27/mi
25K
2:10:10
15.53 mi
Rank: #19034 (+137)
HALF → 25K
20:31 | 8:28/mi
30K
2:36:33
18.64 mi
Rank: #18602 (+432)
25K → 30K
26:23 | 8:30/mi
20M
2:48:04
20.00 mi
Rank: #18414 (+188)
30K → 20M
11:31 | 8:29/mi
21M
2:56:50
21.00 mi
Rank: #18191 (+223)
20M → 21M
8:46 | 8:46/mi
35K
3:02:54
21.75 mi
Rank: #18089 (+102)
21M → 35K
6:04 | 8:07/mi
23M
3:13:25
23.00 mi
Rank: #17885 (+204)
35K → 23M
10:31 | 8:25/mi
24M
3:21:35
24.00 mi
Rank: #17762 (+123)
23M → 24M
8:10 | 8:10/mi
40K
3:28:33
24.85 mi
Rank: #17573 (+189)
24M → 40K
6:58 | 8:09/mi
25.2M
3:31:27
25.20 mi
Rank: #17465 (+108)
40K → 25.2M
2:54 | 8:25/mi
FINISH
3:39:14
26.22 mi
Rank: #17280 (+185)
25.2M → FINISH
7:47 | 7:39/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half⚖️ Balanced
via HALF
Distance13.11 mi
Time1:49:39
Pace8:22 /mi
2nd Half⚖️ Balanced
Distance13.11 mi
Time1:49:35
Pace8:22 /mi
📊Even Split: Consistent pacing between halves

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:27:2625:578:2225:57
8:22
-
10K
6.21 mi11:53:1551:468:2025:49
8:19
-0:03
15K
9.32 mi12:19:091:17:408:2025:54
8:21
+0:02
20K
12.43 mi12:45:231:43:548:2226:14
8:27
+0:06
HALF
13.11 mi12:51:081:49:398:225:45
8:27
0:00
25K
15.53 mi13:11:392:10:108:2320:31
8:28
+0:01
30K
18.64 mi13:38:022:36:338:2426:23
8:30
+0:02
20M
20.00 mi13:49:332:48:048:2511:31
8:29
-0:01
21M
21.00 mi13:58:192:56:508:268:46
8:46
+0:17
35K
21.75 mi14:04:233:02:548:256:04
8:07
-0:39
23M
23.00 mi14:14:543:13:258:2510:31
8:25
+0:18
24M
24.00 mi14:23:043:21:358:248:10
8:10
-0:15
40K
24.85 mi14:30:023:28:338:246:58
8:09
-0:01
25.2M
25.20 mi14:32:563:31:278:242:54
8:25
+0:16
FINISH
26.22 mi14:40:433:39:148:237:47
7:39
-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

7:39 /mi

Average Pace

8:22 /mi

Slowest Pace

8:46 /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

1:46:39

49% of race

Time at Steady Pace

1:52:35

51% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:22 /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 mi11:27:2625:578:2225:57
8:22
#19215
10K
6.21 mi11:53:1551:468:2025:49
8:19
#19217
15K
9.32 mi12:19:091:17:408:2025:54
8:21
#19194
20K
12.43 mi12:45:231:43:548:2226:14
8:27
#19143
HALF
13.11 mi12:51:081:49:398:225:45
8:27
#19171
25K
15.53 mi13:11:392:10:108:2320:31
8:28
#19034
30K
18.64 mi13:38:022:36:338:2426:23
8:30
#18602
20M
20.00 mi13:49:332:48:048:2511:31
8:29
#18414
21M
21.00 mi13:58:192:56:508:268:46
8:46
#18191
35K
21.75 mi14:04:233:02:548:256:04
8:07
#18089
23M
23.00 mi14:14:543:13:258:2510:31
8:25
#17885
24M
24.00 mi14:23:043:21:358:248:10
8:10
#17762
40K
24.85 mi14:30:023:28:338:246:58
8:09
#17573
25.2M
25.20 mi14:32:563:31:278:242:54
8:25
#17465
FINISH
26.22 mi14:40:433:39:148:237:47
7:39
#17280
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi192157203720319199(Top 66%)7146(Top 57%)7146(Top 411%)
10K6.21 mi3.10 mi19217-27186+177186+1719237(Top 66%)7153(Top 57%)7153(Top 412%)
15K9.32 mi3.11 mi19194+237160+267160+2619199(Top 66%)7146(Top 57%)7146(Top 411%)
20K12.43 mi3.11 mi19143+517136+247136+2418974(Top 65%)7047(Top 56%)7047(Top 406%)
HALF13.11 mi0.68 mi19171-287153-177153-1719876(Top 68%)7503(Top 60%)7503(Top 432%)
25K15.53 mi2.42 mi19034+1377089+647089+6418348(Top 63%)6765(Top 54%)6765(Top 389%)
30K18.64 mi3.11 mi18602+4326881+2086881+20816887(Top 58%)6044(Top 48%)6044(Top 348%)
20M20.00 mi1.36 mi18414+1886794+876794+8716105(Top 55%)5707(Top 45%)5707(Top 329%)
21M21.00 mi1.00 mi18191+2236693+1016693+10114824(Top 51%)5056(Top 40%)5056(Top 291%)
35K21.75 mi0.75 mi18089+1026645+486645+4815278(Top 53%)5351(Top 43%)5351(Top 308%)
23M23.00 mi1.25 mi17885+2046558+876558+8715156(Top 52%)5355(Top 43%)5355(Top 308%)
24M24.00 mi1.00 mi17762+1236498+606498+6014899(Top 51%)5288(Top 42%)5288(Top 304%)
40K24.85 mi0.85 mi17573+1896403+956403+9513511(Top 47%)4632(Top 37%)4632(Top 267%)
25.2M25.20 mi0.35 mi17465+1086359+446359+4411196(Top 39%)3487(Top 28%)3487(Top 201%)
FINISH26.22 mi1.02 mi17280+1856270+896270+8912562(Top 43%)4173(Top 33%)4173(Top 240%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 66%
×21
+97ft-345ft

Overall

19199

Females

7146

F40-44

7146

5K→10K

3.1 - 6.2 mi

Top 66%
×5
+79ft-138ft

Overall

19237

Females

7153

F40-44

7153

10K→15K

6.2 - 9.3 mi

Top 66%
×3
+67ft-78ft

Overall

19199

Females

7146

F40-44

7146

15K→20K

9.3 - 12.4 mi

Top 65%
×5
+106ft-86ft

Overall

18974

Females

7047

F40-44

7047

20K→HALF

12.4 - 13.1 mi

Top 68%
×2
+19ft-37ft

Overall

19876

Females

7503

F40-44

7503

HALF→25K

13.1 - 15.5 mi

Top 63%
×4
+66ft-88ft

Overall

18348

Females

6765

F40-44

6765

25K→30K

15.5 - 18.6 mi

Top 58%
×9
+181ft-148ft

Overall

16887

Females

6044

F40-44

6044

30K→20M

18.6 - 20.0 mi

Top 55%
×5
+64ft-50ft

Overall

16105

Females

5707

F40-44

5707

20M→21M

20.0 - 21.0 mi

Top 51%
×8
+106ft-24ft

Overall

14824

Females

5056

F40-44

5056

21M→35K

21.0 - 21.8 mi

Top 53%
×7
+17ft-86ft

Overall

15278

Females

5351

F40-44

5351

35K→23M

21.8 - 23.0 mi

Top 52%
×5
+23ft-63ft

Overall

15156

Females

5355

F40-44

5355

23M→24M

23.0 - 24.0 mi

Top 51%
×6
+12ft-82ft

Overall

14899

Females

5288

F40-44

5288

24M→40K

24.0 - 24.9 mi

Top 47%
×1
+6ft-20ft

Overall

13511

Females

4632

F40-44

4632

40K→25.2M

24.9 - 25.2 mi

Top 39%
×1
+13ft-16ft

Overall

11196

Females

3487

F40-44

3487

25.2M→FINISH

25.2 - 26.2 mi

Top 43%
×2
+22ft-21ft

Overall

12562

Females

4173

F40-44

4173

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2606*
Passed By
669
Net Change
+1935
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19215
5K → 10K200200-2#19215#19217
10K → 15K193170+23#19217#19194
15K → 20K174123+51#19194#19143
20K → HALF1442-28#19143#19171
HALF → 25K18447+137#19171#19034
25K → 30K457*25+432#19034#18602
30K → 20M1968+188#18602#18414
20M → 21M231*8+223#18414#18191
21M → 35K1086+102#18191#18089
35K → 23M213*9+204#18089#17885
23M → 24M13714+123#17885#17762
24M → 40K1978+189#17762#17573
40K → 25.2M1091+108#17573#17465
25.2M → FINISH1938+185#17465#17280
TOTALS2606*669+1935

* 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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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