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BOSTON MARATHON 2026

Courtney Busemeyer

Bib: 21388•F

OH

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0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 47%
Masters (Masters Women)
#0 / 6862
Top 34%
Age Group (F45-49)
#0 / 1786
Top 44%
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
25:12
3.11 mi
Rank: #17686
Start → 5K
25:12 | 8:07/mi
10K
50:32
6.21 mi
Rank: #17974 (-288)
5K → 10K
25:20 | 8:10/mi
15K
1:16:04
9.32 mi
Rank: #18151 (-177)
10K → 15K
25:32 | 8:14/mi
20K
1:41:54
12.43 mi
Rank: #18168 (-17)
15K → 20K
25:50 | 8:19/mi
HALF
1:47:30
13.11 mi
Rank: #18170 (-2)
20K → HALF
5:36 | 8:13/mi
25K
2:07:35
15.53 mi
Rank: #18030 (+140)
HALF → 25K
20:05 | 8:17/mi
30K
2:33:41
18.64 mi
Rank: #17670 (+360)
25K → 30K
26:06 | 8:25/mi
20M
2:45:02
20.00 mi
Rank: #17485 (+185)
30K → 20M
11:21 | 8:22/mi
21M
2:53:46
21.00 mi
Rank: #17295 (+190)
20M → 21M
8:44 | 8:44/mi
35K
2:59:52
21.75 mi
Rank: #17216 (+79)
21M → 35K
6:06 | 8:10/mi
23M
3:10:25
23.00 mi
Rank: #17070 (+146)
35K → 23M
10:33 | 8:26/mi
24M
3:18:38
24.00 mi
Rank: #16962 (+108)
23M → 24M
8:13 | 8:13/mi
40K
3:25:53
24.85 mi
Rank: #16911 (+51)
24M → 40K
7:15 | 8:29/mi
25.2M
3:28:57
25.20 mi
Rank: #16850 (+61)
40K → 25.2M
3:04 | 8:54/mi
FINISH
3:36:55
26.22 mi
Rank: #16720 (+130)
25.2M → FINISH
7:58 | 7:50/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:47:30
Pace8:13 /mi
2nd Half
Distance13.11 mi
Time1:49:25
Pace8:21 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:26:2725:128:0725:12
8:07
-
10K
6.21 mi11:51:4750:328:0825:20
8:10
+0:03
15K
9.32 mi12:17:191:16:048:1025:32
8:14
+0:04
20K
12.43 mi12:43:091:41:548:1225:50
8:19
+0:05
HALF
13.11 mi12:48:451:47:308:135:36
8:13
-0:06
25K
15.53 mi13:08:502:07:358:1320:05
8:17
+0:04
30K
18.64 mi13:34:562:33:418:1526:06
8:25
+0:08
20M
20.00 mi13:46:172:45:028:1611:21
8:22
-0:03
21M
21.00 mi13:55:012:53:468:178:44
8:44
+0:22
35K
21.75 mi14:01:072:59:528:176:06
8:10
-0:34
23M
23.00 mi14:11:403:10:258:1710:33
8:26
+0:16
24M
24.00 mi14:19:533:18:388:178:13
8:13
-0:13
40K
24.85 mi14:27:083:25:538:187:15
8:29
+0:16
25.2M
25.20 mi14:30:123:28:578:183:04
8:54
+0:25
FINISH
26.22 mi14:38:103:36:558:177:58
7:50
-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

7:50 /mi

Average Pace

8:17 /mi

Slowest Pace

8:54 /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

3:25:07

95% of race

Time at Steady Pace

11:48

5% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:16 /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 mi11:26:2725:128:0725:12
8:07
#17686
10K
6.21 mi11:51:4750:328:0825:20
8:10
#17974
15K
9.32 mi12:17:191:16:048:1025:32
8:14
#18151
20K
12.43 mi12:43:091:41:548:1225:50
8:19
#18168
HALF
13.11 mi12:48:451:47:308:135:36
8:13
#18170
25K
15.53 mi13:08:502:07:358:1320:05
8:17
#18030
30K
18.64 mi13:34:562:33:418:1526:06
8:25
#17670
20M
20.00 mi13:46:172:45:028:1611:21
8:22
#17485
21M
21.00 mi13:55:012:53:468:178:44
8:44
#17295
35K
21.75 mi14:01:072:59:528:176:06
8:10
#17216
23M
23.00 mi14:11:403:10:258:1710:33
8:26
#17070
24M
24.00 mi14:19:533:18:388:178:13
8:13
#16962
40K
24.85 mi14:27:083:25:538:187:15
8:29
#16911
25.2M
25.20 mi14:30:123:28:578:183:04
8:54
#16850
FINISH
26.22 mi14:38:103:36:558:177:58
7:50
#16720
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi176866321632118453(Top 64%)6730(Top 54%)6730(Top 377%)
10K6.21 mi3.10 mi17974-2886483-1626483-16218313(Top 63%)6643(Top 53%)6643(Top 372%)
15K9.32 mi3.11 mi18151-1776572-896572-8918453(Top 64%)6730(Top 54%)6730(Top 377%)
20K12.43 mi3.11 mi18168-176579-76579-718213(Top 63%)6634(Top 53%)6634(Top 371%)
HALF13.11 mi0.68 mi18170-26584-56584-518495(Top 64%)6744(Top 54%)6744(Top 378%)
25K15.53 mi2.42 mi18030+1406515+696515+6917319(Top 60%)6175(Top 49%)6175(Top 346%)
30K18.64 mi3.11 mi17670+3606341+1746341+17416280(Top 56%)5676(Top 45%)5676(Top 318%)
20M20.00 mi1.36 mi17485+1856249+926249+9215296(Top 53%)5250(Top 42%)5250(Top 294%)
21M21.00 mi1.00 mi17295+1906159+906159+9014624(Top 50%)4928(Top 39%)4928(Top 276%)
35K21.75 mi0.75 mi17216+796132+276132+2715540(Top 54%)5498(Top 44%)5498(Top 308%)
23M23.00 mi1.25 mi17070+1466080+526080+5215289(Top 53%)5424(Top 43%)5424(Top 304%)
24M24.00 mi1.00 mi16962+1086042+386042+3815221(Top 52%)5464(Top 43%)5464(Top 306%)
40K24.85 mi0.85 mi16911+516031+116031+1115585(Top 54%)5731(Top 46%)5731(Top 321%)
25.2M25.20 mi0.35 mi16850+616007+246007+2414184(Top 49%)5025(Top 40%)5025(Top 281%)
FINISH26.22 mi1.02 mi16720+1305953+545953+5413951(Top 48%)4904(Top 39%)4904(Top 275%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 64%
×21
+97ft-345ft

Overall

18453

Females

6730

F45-49

6730

5K→10K

3.1 - 6.2 mi

Top 63%
×5
+79ft-138ft

Overall

18313

Females

6643

F45-49

6643

10K→15K

6.2 - 9.3 mi

Top 64%
×3
+67ft-78ft

Overall

18453

Females

6730

F45-49

6730

15K→20K

9.3 - 12.4 mi

Top 63%
×5
+106ft-86ft

Overall

18213

Females

6634

F45-49

6634

20K→HALF

12.4 - 13.1 mi

Top 64%
×2
+19ft-37ft

Overall

18495

Females

6744

F45-49

6744

HALF→25K

13.1 - 15.5 mi

Top 60%
×4
+66ft-88ft

Overall

17319

Females

6175

F45-49

6175

25K→30K

15.5 - 18.6 mi

Top 56%
×9
+181ft-148ft

Overall

16280

Females

5676

F45-49

5676

30K→20M

18.6 - 20.0 mi

Top 53%
×5
+64ft-50ft

Overall

15296

Females

5250

F45-49

5250

20M→21M

20.0 - 21.0 mi

Top 50%
×8
+106ft-24ft

Overall

14624

Females

4928

F45-49

4928

21M→35K

21.0 - 21.8 mi

Top 54%
×7
+17ft-86ft

Overall

15540

Females

5498

F45-49

5498

35K→23M

21.8 - 23.0 mi

Top 53%
×5
+23ft-63ft

Overall

15289

Females

5424

F45-49

5424

23M→24M

23.0 - 24.0 mi

Top 52%
×6
+12ft-82ft

Overall

15221

Females

5464

F45-49

5464

24M→40K

24.0 - 24.9 mi

Top 54%
×1
+6ft-20ft

Overall

15585

Females

5731

F45-49

5731

40K→25.2M

24.9 - 25.2 mi

Top 49%
×1
+13ft-16ft

Overall

14184

Females

5025

F45-49

5025

25.2M→FINISH

25.2 - 26.2 mi

Top 48%
×2
+22ft-21ft

Overall

13951

Females

4904

F45-49

4904

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2153*
Passed By
845
Net Change
+966
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#17686
5K → 10K158200-288#17686#17974
10K → 15K119200-177#17974#18151
15K → 20K159176-17#18151#18168
20K → HALF2628-2#18168#18170
HALF → 25K18949+140#18170#18030
25K → 30K404*44+360#18030#17670
30K → 20M19914+185#17670#17485
20M → 21M205*15+190#17485#17295
21M → 35K9415+79#17295#17216
35K → 23M17226+146#17216#17070
23M → 24M13426+108#17070#16962
24M → 40K8332+51#16962#16911
40K → 25.2M676+61#16911#16850
25.2M → FINISH14414+130#16850#16720
TOTALS2153*845+966

* 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