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BOSTON MARATHON 2026

Grace Callow

Bib: 30192β€’F

MA

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0:00
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
51Β°/41Β°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
22:50
3.11 mi
Rank: #11505
Start β†’ 5K
22:50 | 7:21/mi
10K
46:39
6.21 mi
Rank: #12914 (-1409)
5K β†’ 10K
23:49 | 7:40/mi
15K
1:10:18
9.32 mi
Rank: #13164 (-250)
10K β†’ 15K
23:39 | 7:37/mi
20K
1:36:07
12.43 mi
Rank: #14598 (-1434)
15K β†’ 20K
25:49 | 8:19/mi
HALF
1:41:33
13.11 mi
Rank: #14721 (-123)
20K β†’ HALF
5:26 | 7:59/mi
25K
2:01:55
15.53 mi
Rank: #15324 (-603)
HALF β†’ 25K
20:22 | 8:24/mi
30K
2:28:07
18.64 mi
Rank: #15567 (-243)
25K β†’ 30K
26:12 | 8:26/mi
20M
2:39:30
20.00 mi
Rank: #15550 (+17)
30K β†’ 20M
11:23 | 8:23/mi
21M
2:49:06
21.00 mi
Rank: #15778 (-228)
20M β†’ 21M
9:36 | 9:36/mi
35K
2:55:17
21.75 mi
Rank: #15776 (+2)
21M β†’ 35K
6:11 | 8:16/mi
23M
3:06:09
23.00 mi
Rank: #15814 (-38)
35K β†’ 23M
10:52 | 8:41/mi
24M
3:14:29
24.00 mi
Rank: #15808 (+6)
23M β†’ 24M
8:20 | 8:20/mi
40K
3:21:45
24.85 mi
Rank: #15802 (+6)
24M β†’ 40K
7:16 | 8:30/mi
25.2M
3:24:53
25.20 mi
Rank: #15777 (+25)
40K β†’ 25.2M
3:08 | 9:06/mi
FINISH
3:33:10
26.22 mi
Rank: #15765 (+12)
25.2M β†’ FINISH
8:17 | 8:08/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:41:33
Pace7:45 /mi
2nd Half
Distance13.11 mi
Time1:51:37
Pace8:31 /mi
πŸ“ŠPositive Split: 9.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:45:5422:507:2122:50
7:21
-
10K
6.21 mi12:09:4346:397:3123:49
7:40
+0:19
15K
9.32 mi12:33:221:10:187:3323:39
7:37
-0:03
20K
12.43 mi12:59:111:36:077:4525:49
8:19
+0:42
HALF
13.11 mi13:04:371:41:337:455:26
7:59
-0:20
25K
15.53 mi13:24:592:01:557:5120:22
8:24
+0:25
30K
18.64 mi13:51:112:28:077:5726:12
8:26
+0:02
20M
20.00 mi14:02:342:39:307:5911:23
8:23
-0:03
21M
21.00 mi14:12:102:49:068:049:36
9:36
+1:13
35K
21.75 mi14:18:212:55:178:046:11
8:16
-1:20
23M
23.00 mi14:29:133:06:098:0610:52
8:41
+0:25
24M
24.00 mi14:37:333:14:298:078:20
8:20
-0:21
40K
24.85 mi14:44:493:21:458:087:16
8:30
+0:10
25.2M
25.20 mi14:47:573:24:538:083:08
9:06
+0:36
FINISH
26.22 mi14:56:143:33:108:098:17
8:08
-0:58

Checkpoint Splits Visualizations

Explore your race data through different visual perspectives. Scroll to discover each visualization.

πŸ“ˆPace 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

7:21 /mi

Average Pace

8:08 /mi

Slowest Pace

9:36 /mi

Loading chart...
Fastest
Middle
Slowest
Average

πŸ“ŠSegments

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

1:15:44

36% of race

Time at Steady Pace

1:53:50

53% of race

Time at Slower Pace

23:36

11% of race

Average Pace: 8:08 /mi

Loading chart...
Faster pace (< avg)
Steady pace (β‰ˆ 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 mi11:45:5422:507:2122:50
7:21
#11505
10K
6.21 mi12:09:4346:397:3123:49
7:40
#12914
15K
9.32 mi12:33:221:10:187:3323:39
7:37
#13164
20K
12.43 mi12:59:111:36:077:4525:49
8:19
#14598
HALF
13.11 mi13:04:371:41:337:455:26
7:59
#14721
25K
15.53 mi13:24:592:01:557:5120:22
8:24
#15324
30K
18.64 mi13:51:112:28:077:5726:12
8:26
#15567
20M
20.00 mi14:02:342:39:307:5911:23
8:23
#15550
21M
21.00 mi14:12:102:49:068:049:36
9:36
#15778
35K
21.75 mi14:18:212:55:178:046:11
8:16
#15776
23M
23.00 mi14:29:133:06:098:0610:52
8:41
#15814
24M
24.00 mi14:37:333:14:298:078:20
8:20
#15808
40K
24.85 mi14:44:493:21:458:087:16
8:30
#15802
25.2M
25.20 mi14:47:573:24:538:083:08
9:06
#15777
FINISH
26.22 mi14:56:143:33:108:098:17
8:08
#15765
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 mi115052648264813804(Top 48%)4041(Top 32%)4041(Top 71%)
10K6.21 mi3.10 mi12914-14093462-8143462-81414469(Top 50%)4385(Top 35%)4385(Top 77%)
15K9.32 mi3.11 mi13164-2503635-1733635-17313804(Top 48%)4041(Top 32%)4041(Top 71%)
20K12.43 mi3.11 mi14598-14344484-8494484-84918163(Top 63%)6605(Top 53%)6605(Top 116%)
HALF13.11 mi0.68 mi14721-1234571-874571-8716931(Top 58%)5871(Top 47%)5871(Top 103%)
25K15.53 mi2.42 mi15324-6034957-3864957-38617974(Top 62%)6539(Top 52%)6539(Top 114%)
30K18.64 mi3.11 mi15567-2435140-1835140-18316470(Top 57%)5791(Top 46%)5791(Top 101%)
20M20.00 mi1.36 mi15550+175152-125152-1215454(Top 53%)5332(Top 42%)5332(Top 93%)
21M21.00 mi1.00 mi15778-2285310-1585310-15818961(Top 65%)7300(Top 58%)7300(Top 128%)
35K21.75 mi0.75 mi15776+25318-85318-816234(Top 56%)5880(Top 47%)5880(Top 103%)
23M23.00 mi1.25 mi15814-385373-555373-5516816(Top 58%)6322(Top 50%)6322(Top 111%)
24M24.00 mi1.00 mi15808+65384-115384-1115930(Top 55%)5859(Top 47%)5859(Top 103%)
40K24.85 mi0.85 mi15802+65400-165400-1615690(Top 54%)5787(Top 46%)5787(Top 101%)
25.2M25.20 mi0.35 mi15777+255392+85392+815258(Top 53%)5579(Top 44%)5579(Top 98%)
FINISH26.22 mi1.02 mi15765+125411-195411-1915995(Top 55%)5939(Top 47%)5939(Top 104%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 48%
Γ—21
+97ft-345ft

Overall

13804

Females

4041

F18-39

4041

5K→10K

3.1 - 6.2 mi

Top 50%
Γ—5
+79ft-138ft

Overall

14469

Females

4385

F18-39

4385

10K→15K

6.2 - 9.3 mi

Top 48%
Γ—3
+67ft-78ft

Overall

13804

Females

4041

F18-39

4041

15K→20K

9.3 - 12.4 mi

Top 63%
Γ—5
+106ft-86ft

Overall

18163

Females

6605

F18-39

6605

20K→HALF

12.4 - 13.1 mi

Top 58%
Γ—2
+19ft-37ft

Overall

16931

Females

5871

F18-39

5871

HALF→25K

13.1 - 15.5 mi

Top 62%
Γ—4
+66ft-88ft

Overall

17974

Females

6539

F18-39

6539

25K→30K

15.5 - 18.6 mi

Top 57%
Γ—9
+181ft-148ft

Overall

16470

Females

5791

F18-39

5791

30K→20M

18.6 - 20.0 mi

Top 53%
Γ—5
+64ft-50ft

Overall

15454

Females

5332

F18-39

5332

20M→21M

20.0 - 21.0 mi

Top 65%
Γ—8
+106ft-24ft

Overall

18961

Females

7300

F18-39

7300

21M→35K

21.0 - 21.8 mi

Top 56%
Γ—7
+17ft-86ft

Overall

16234

Females

5880

F18-39

5880

35K→23M

21.8 - 23.0 mi

Top 58%
Γ—5
+23ft-63ft

Overall

16816

Females

6322

F18-39

6322

23M→24M

23.0 - 24.0 mi

Top 55%
Γ—6
+12ft-82ft

Overall

15930

Females

5859

F18-39

5859

24M→40K

24.0 - 24.9 mi

Top 54%
Γ—1
+6ft-20ft

Overall

15690

Females

5787

F18-39

5787

40K→25.2M

24.9 - 25.2 mi

Top 53%
Γ—1
+13ft-16ft

Overall

15258

Females

5579

F18-39

5579

25.2M→FINISH

25.2 - 26.2 mi

Top 55%
Γ—2
+22ft-21ft

Overall

15995

Females

5939

F18-39

5939

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
884
Passed By
5143
Net Change
-4260
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#11505
5K β†’ 10K231431-1409#11505#12914
10K β†’ 15K115365-250#12914#13164
15K β†’ 20K121446-1434#13164#14598
20K β†’ HALF6129-123#14598#14721
HALF β†’ 25K41644-603#14721#15324
25K β†’ 30K129372-243#15324#15567
30K β†’ 20M11295+17#15567#15550
20M β†’ 21M50278-228#15550#15778
21M β†’ 35K6563+2#15778#15776
35K β†’ 23M86124-38#15776#15814
23M β†’ 24M6963+6#15814#15808
24M β†’ 40K7165+6#15808#15802
40K β†’ 25.2M4419+25#15802#15777
25.2M β†’ FINISH6149+12#15777#15765
TOTALS8845143-4260
πŸ“Š

Passing Analysis Visualizations

Explore your passing analysis through 5 different visualizations. Scroll to discover each one.

Time:
Category:

πŸ“ˆPosition Graph

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🎨Heatmap Timeline

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πŸ”„Passing Circle

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🌊Position Flow

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πŸƒRace 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