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BOSTON MARATHON 2026

Tracy Grashoff

Bib: 20782•F

IN

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 47%
Masters (Masters Women)
#0 / 6862
Top 33%
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
25:59
3.11 mi
Rank: #19291
Start → 5K
25:59 | 8:22/mi
10K
51:52
6.21 mi
Rank: #19309 (-18)
5K → 10K
25:53 | 8:20/mi
15K
1:17:40
9.32 mi
Rank: #19191 (+118)
10K → 15K
25:48 | 8:19/mi
20K
1:43:31
12.43 mi
Rank: #18946 (+245)
15K → 20K
25:51 | 8:20/mi
HALF
1:49:09
13.11 mi
Rank: #18932 (+14)
20K → HALF
5:38 | 8:16/mi
25K
2:09:19
15.53 mi
Rank: #18677 (+255)
HALF → 25K
20:10 | 8:19/mi
30K
2:35:25
18.64 mi
Rank: #18257 (+420)
25K → 30K
26:06 | 8:25/mi
20M
2:46:45
20.00 mi
Rank: #18012 (+245)
30K → 20M
11:20 | 8:21/mi
21M
2:55:11
21.00 mi
Rank: #17728 (+284)
20M → 21M
8:26 | 8:26/mi
35K
3:01:23
21.75 mi
Rank: #17659 (+69)
21M → 35K
6:12 | 8:18/mi
23M
3:11:34
23.00 mi
Rank: #17397 (+262)
35K → 23M
10:11 | 8:09/mi
24M
3:19:23
24.00 mi
Rank: #17160 (+237)
23M → 24M
7:49 | 7:49/mi
40K
3:26:10
24.85 mi
Rank: #16966 (+194)
24M → 40K
6:47 | 7:57/mi
25.2M
3:29:00
25.20 mi
Rank: #16870 (+96)
40K → 25.2M
2:50 | 8:13/mi
FINISH
3:36:17
26.22 mi
Rank: #16555 (+315)
25.2M → FINISH
7:17 | 7:09/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:49:09
Pace8:20 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:47:08
Pace8:11 /mi
📊Negative Split: 1.8% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:12:5325:598:2225:59
8:22
-
10K
6.21 mi11:38:4651:528:2125:53
8:20
-0:02
15K
9.32 mi12:04:341:17:408:2025:48
8:19
-0:01
20K
12.43 mi12:30:251:43:318:2025:51
8:20
+0:01
HALF
13.11 mi12:36:031:49:098:205:38
8:16
-0:04
25K
15.53 mi12:56:132:09:198:2020:10
8:19
+0:03
30K
18.64 mi13:22:192:35:258:2126:06
8:25
+0:06
20M
20.00 mi13:33:392:46:458:2111:20
8:21
-0:04
21M
21.00 mi13:42:052:55:118:218:26
8:26
+0:05
35K
21.75 mi13:48:173:01:238:216:12
8:18
-0:08
23M
23.00 mi13:58:283:11:348:2010:11
8:09
-0:09
24M
24.00 mi14:06:173:19:238:197:49
7:49
-0:20
40K
24.85 mi14:13:043:26:108:186:47
7:57
+0:08
25.2M
25.20 mi14:15:543:29:008:182:50
8:13
+0:16
FINISH
26.22 mi14:23:113:36:178:167:17
7:09
-1:04

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

7:09 /mi

Average Pace

8:15 /mi

Slowest Pace

8:26 /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

15:06

7% of race

Time at Steady Pace

3:21:11

93% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:15 /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 mi11:12:5325:598:2225:59
8:22
#19291
10K
6.21 mi11:38:4651:528:2125:53
8:20
#19309
15K
9.32 mi12:04:341:17:408:2025:48
8:19
#19191
20K
12.43 mi12:30:251:43:318:2025:51
8:20
#18946
HALF
13.11 mi12:36:031:49:098:205:38
8:16
#18932
25K
15.53 mi12:56:132:09:198:2020:10
8:19
#18677
30K
18.64 mi13:22:192:35:258:2126:06
8:25
#18257
20M
20.00 mi13:33:392:46:458:2111:20
8:21
#18012
21M
21.00 mi13:42:052:55:118:218:26
8:26
#17728
35K
21.75 mi13:48:173:01:238:216:12
8:18
#17659
23M
23.00 mi13:58:283:11:348:2010:11
8:09
#17397
24M
24.00 mi14:06:173:19:238:197:49
7:49
#17160
40K
24.85 mi14:13:043:26:108:186:47
7:57
#16966
25.2M
25.20 mi14:15:543:29:008:182:50
8:13
#16870
FINISH
26.22 mi14:23:113:36:178:167:17
7:09
#16555
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 mi192917242724219007(Top 65%)7040(Top 56%)7040(Top 405%)
10K6.21 mi3.10 mi19309-187240+27240+219382(Top 67%)7235(Top 58%)7235(Top 417%)
15K9.32 mi3.11 mi19191+1187157+837157+8319007(Top 65%)7040(Top 56%)7040(Top 405%)
20K12.43 mi3.11 mi18946+2457030+1277030+12718246(Top 63%)6655(Top 53%)6655(Top 383%)
HALF13.11 mi0.68 mi18932+147024+67024+618798(Top 65%)6920(Top 55%)6920(Top 398%)
25K15.53 mi2.42 mi18677+2556882+1426882+14217522(Top 60%)6288(Top 50%)6288(Top 362%)
30K18.64 mi3.11 mi18257+4206684+1986684+19816277(Top 56%)5673(Top 45%)5673(Top 327%)
20M20.00 mi1.36 mi18012+2456568+1166568+11615230(Top 52%)5204(Top 41%)5204(Top 300%)
21M21.00 mi1.00 mi17728+2846412+1566412+15612751(Top 44%)3936(Top 31%)3936(Top 227%)
35K21.75 mi0.75 mi17659+696385+276385+2716385(Top 56%)5970(Top 47%)5970(Top 344%)
23M23.00 mi1.25 mi17397+2626266+1196266+11913424(Top 46%)4413(Top 35%)4413(Top 254%)
24M24.00 mi1.00 mi17160+2376153+1136153+11312496(Top 43%)3993(Top 32%)3993(Top 230%)
40K24.85 mi0.85 mi16966+1946063+906063+9012107(Top 42%)3858(Top 31%)3858(Top 222%)
25.2M25.20 mi0.35 mi16870+966018+456018+459862(Top 34%)2808(Top 22%)2808(Top 162%)
FINISH26.22 mi1.02 mi16555+3155856+1625856+1628781(Top 30%)2302(Top 18%)2302(Top 133%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 65%
×21
+97ft-345ft

Overall

19007

Females

7040

F40-44

7040

5K→10K

3.1 - 6.2 mi

Top 67%
×5
+79ft-138ft

Overall

19382

Females

7235

F40-44

7235

10K→15K

6.2 - 9.3 mi

Top 65%
×3
+67ft-78ft

Overall

19007

Females

7040

F40-44

7040

15K→20K

9.3 - 12.4 mi

Top 63%
×5
+106ft-86ft

Overall

18246

Females

6655

F40-44

6655

20K→HALF

12.4 - 13.1 mi

Top 65%
×2
+19ft-37ft

Overall

18798

Females

6920

F40-44

6920

HALF→25K

13.1 - 15.5 mi

Top 60%
×4
+66ft-88ft

Overall

17522

Females

6288

F40-44

6288

25K→30K

15.5 - 18.6 mi

Top 56%
×9
+181ft-148ft

Overall

16277

Females

5673

F40-44

5673

30K→20M

18.6 - 20.0 mi

Top 52%
×5
+64ft-50ft

Overall

15230

Females

5204

F40-44

5204

20M→21M

20.0 - 21.0 mi

Top 44%
×8
+106ft-24ft

Overall

12751

Females

3936

F40-44

3936

21M→35K

21.0 - 21.8 mi

Top 56%
×7
+17ft-86ft

Overall

16385

Females

5970

F40-44

5970

35K→23M

21.8 - 23.0 mi

Top 46%
×5
+23ft-63ft

Overall

13424

Females

4413

F40-44

4413

23M→24M

23.0 - 24.0 mi

Top 43%
×6
+12ft-82ft

Overall

12496

Females

3993

F40-44

3993

24M→40K

24.0 - 24.9 mi

Top 42%
×1
+6ft-20ft

Overall

12107

Females

3858

F40-44

3858

40K→25.2M

24.9 - 25.2 mi

Top 34%
×1
+13ft-16ft

Overall

9862

Females

2808

F40-44

2808

25.2M→FINISH

25.2 - 26.2 mi

Top 30%
×2
+22ft-21ft

Overall

8781

Females

2302

F40-44

2302

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3228*
Passed By
474
Net Change
+2736
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#19291
5K → 10K200200-18#19291#19309
10K → 15K236*118+118#19309#19191
15K → 20K287*42+245#19191#18946
20K → HALF3723+14#18946#18932
HALF → 25K287*32+255#18932#18677
25K → 30K432*12+420#18677#18257
30K → 20M255*10+245#18257#18012
20M → 21M287*3+284#18012#17728
21M → 35K9122+69#17728#17659
35K → 23M267*5+262#17659#17397
23M → 24M239*2+237#17397#17160
24M → 40K1973+194#17160#16966
40K → 25.2M982+96#16966#16870
25.2M → FINISH315*0+315#16870#16555
TOTALS3228*474+2736

* 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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Export & Support

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing