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BOSTON MARATHON 2026

Caitlin Grindberg

Bib: 17436•F

MN

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0:00
/ mi
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 43%
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
24:23
3.11 mi
Rank: #15845
Start → 5K
24:23 | 7:51/mi
10K
48:25
6.21 mi
Rank: #15424 (+421)
5K → 10K
24:02 | 7:45/mi
15K
1:12:18
9.32 mi
Rank: #15055 (+369)
10K → 15K
23:53 | 7:42/mi
20K
1:36:15
12.43 mi
Rank: #14693 (+362)
15K → 20K
23:57 | 7:43/mi
HALF
1:41:28
13.11 mi
Rank: #14664 (+29)
20K → HALF
5:13 | 7:40/mi
25K
2:00:23
15.53 mi
Rank: #14507 (+157)
HALF → 25K
18:55 | 7:49/mi
30K
2:26:00
18.64 mi
Rank: #14632 (-125)
25K → 30K
25:37 | 8:15/mi
20M
2:37:58
20.00 mi
Rank: #14926 (-294)
30K → 20M
11:58 | 8:49/mi
21M
2:47:42
21.00 mi
Rank: #15253 (-327)
20M → 21M
9:44 | 9:44/mi
35K
2:53:50
21.75 mi
Rank: #15260 (-7)
21M → 35K
6:08 | 8:12/mi
23M
3:04:52
23.00 mi
Rank: #15418 (-158)
35K → 23M
11:02 | 8:49/mi
24M
3:13:05
24.00 mi
Rank: #15425 (-7)
23M → 24M
8:13 | 8:13/mi
40K
3:20:43
24.85 mi
Rank: #15521 (-96)
24M → 40K
7:38 | 8:56/mi
25.2M
3:24:05
25.20 mi
Rank: #15566 (-45)
40K → 25.2M
3:22 | 9:46/mi
FINISH
3:32:37
26.22 mi
Rank: #15654 (-88)
25.2M → FINISH
8:32 | 8:23/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:41:28
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:51:09
Pace8:29 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:06:0224:237:5124:23
7:51
-
10K
6.21 mi11:30:0448:257:4824:02
7:45
-0:06
15K
9.32 mi11:53:571:12:187:4623:53
7:42
-0:03
20K
12.43 mi12:17:541:36:157:4523:57
7:43
+0:01
HALF
13.11 mi12:23:071:41:287:455:13
7:40
-0:03
25K
15.53 mi12:42:022:00:237:4518:55
7:49
+0:09
30K
18.64 mi13:07:392:26:007:5025:37
8:15
+0:26
20M
20.00 mi13:19:372:37:587:5411:58
8:49
+0:34
21M
21.00 mi13:29:212:47:428:009:44
9:44
+0:55
35K
21.75 mi13:35:292:53:508:006:08
8:12
-1:32
23M
23.00 mi13:46:313:04:528:0311:02
8:49
+0:37
24M
24.00 mi13:54:443:13:058:038:13
8:13
-0:36
40K
24.85 mi14:02:223:20:438:057:38
8:56
+0:43
25.2M
25.20 mi14:05:443:24:058:063:22
9:46
+0:50
FINISH
26.22 mi14:14:163:32:378:078:32
8:23
-1:23

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

7:40 /mi

Average Pace

8:07 /mi

Slowest Pace

9:46 /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

2:00:23

57% of race

Time at Steady Pace

48:30

23% of race

Time at Slower Pace

43:44

21% of race

Average Pace: 8:07 /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 mi11:06:0224:237:5124:23
7:51
#15845
10K
6.21 mi11:30:0448:257:4824:02
7:45
#15424
15K
9.32 mi11:53:571:12:187:4623:53
7:42
#15055
20K
12.43 mi12:17:541:36:157:4523:57
7:43
#14693
HALF
13.11 mi12:23:071:41:287:455:13
7:40
#14664
25K
15.53 mi12:42:022:00:237:4518:55
7:49
#14507
30K
18.64 mi13:07:392:26:007:5025:37
8:15
#14632
20M
20.00 mi13:19:372:37:587:5411:58
8:49
#14926
21M
21.00 mi13:29:212:47:428:009:44
9:44
#15253
35K
21.75 mi13:35:292:53:508:006:08
8:12
#15260
23M
23.00 mi13:46:313:04:528:0311:02
8:49
#15418
24M
24.00 mi13:54:443:13:058:038:13
8:13
#15425
40K
24.85 mi14:02:223:20:438:057:38
8:56
#15521
25.2M
25.20 mi14:05:443:24:058:063:22
9:46
#15566
FINISH
26.22 mi14:14:163:32:378:078:32
8:23
#15654
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 mi158455215521514461(Top 50%)4425(Top 35%)4425(Top 77%)
10K6.21 mi3.10 mi15424+4214976+2394976+23915074(Top 52%)4752(Top 38%)4752(Top 83%)
15K9.32 mi3.11 mi15055+3694772+2044772+20414461(Top 50%)4425(Top 35%)4425(Top 77%)
20K12.43 mi3.11 mi14693+3624549+2234549+22313817(Top 48%)4113(Top 33%)4113(Top 72%)
HALF13.11 mi0.68 mi14664+294526+234526+2314429(Top 50%)4422(Top 35%)4422(Top 77%)
25K15.53 mi2.42 mi14507+1574463+634463+6313876(Top 48%)4230(Top 34%)4230(Top 74%)
30K18.64 mi3.11 mi14632-1254572-1094572-10915240(Top 53%)5102(Top 41%)5102(Top 89%)
20M20.00 mi1.36 mi14926-2944782-2104782-21018031(Top 62%)6772(Top 54%)6772(Top 118%)
21M21.00 mi1.00 mi15253-3275012-2305012-23019505(Top 67%)7580(Top 60%)7580(Top 133%)
35K21.75 mi0.75 mi15260-75022-105022-1015817(Top 55%)5646(Top 45%)5646(Top 99%)
23M23.00 mi1.25 mi15418-1585141-1195141-11917530(Top 60%)6703(Top 53%)6703(Top 117%)
24M24.00 mi1.00 mi15425-75165-245165-2415212(Top 52%)5455(Top 43%)5455(Top 95%)
40K24.85 mi0.85 mi15521-965236-715236-7118049(Top 62%)7059(Top 56%)7059(Top 123%)
25.2M25.20 mi0.35 mi15566-455281-455281-4518485(Top 64%)7282(Top 58%)7282(Top 127%)
FINISH26.22 mi1.02 mi15654-885346-655346-6517472(Top 60%)6758(Top 54%)6758(Top 118%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 50%
×21
+97ft-345ft

Overall

14461

Females

4425

F18-39

4425

5K→10K

3.1 - 6.2 mi

Top 52%
×5
+79ft-138ft

Overall

15074

Females

4752

F18-39

4752

10K→15K

6.2 - 9.3 mi

Top 50%
×3
+67ft-78ft

Overall

14461

Females

4425

F18-39

4425

15K→20K

9.3 - 12.4 mi

Top 48%
×5
+106ft-86ft

Overall

13817

Females

4113

F18-39

4113

20K→HALF

12.4 - 13.1 mi

Top 50%
×2
+19ft-37ft

Overall

14429

Females

4422

F18-39

4422

HALF→25K

13.1 - 15.5 mi

Top 48%
×4
+66ft-88ft

Overall

13876

Females

4230

F18-39

4230

25K→30K

15.5 - 18.6 mi

Top 53%
×9
+181ft-148ft

Overall

15240

Females

5102

F18-39

5102

30K→20M

18.6 - 20.0 mi

Top 62%
×5
+64ft-50ft

Overall

18031

Females

6772

F18-39

6772

20M→21M

20.0 - 21.0 mi

Top 67%
×8
+106ft-24ft

Overall

19505

Females

7580

F18-39

7580

21M→35K

21.0 - 21.8 mi

Top 55%
×7
+17ft-86ft

Overall

15817

Females

5646

F18-39

5646

35K→23M

21.8 - 23.0 mi

Top 60%
×5
+23ft-63ft

Overall

17530

Females

6703

F18-39

6703

23M→24M

23.0 - 24.0 mi

Top 52%
×6
+12ft-82ft

Overall

15212

Females

5455

F18-39

5455

24M→40K

24.0 - 24.9 mi

Top 62%
×1
+6ft-20ft

Overall

18049

Females

7059

F18-39

7059

40K→25.2M

24.9 - 25.2 mi

Top 64%
×1
+13ft-16ft

Overall

18485

Females

7282

F18-39

7282

25.2M→FINISH

25.2 - 26.2 mi

Top 60%
×2
+22ft-21ft

Overall

17472

Females

6758

F18-39

6758

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2172
Passed By
1981
Net Change
+191
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15845
5K → 10K553132+421#15845#15424
10K → 15K43566+369#15424#15055
15K → 20K41351+362#15055#14693
20K → HALF4920+29#14693#14664
HALF → 25K21356+157#14664#14507
25K → 30K157282-125#14507#14632
30K → 20M36330-294#14632#14926
20M → 21M47374-327#14926#15253
21M → 35K6067-7#15253#15260
35K → 23M48206-158#15260#15418
23M → 24M6875-7#15418#15425
24M → 40K44140-96#15425#15521
40K → 25.2M2065-45#15521#15566
25.2M → FINISH29117-88#15566#15654
TOTALS21721981+191
📊

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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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing