Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Michelle Belcher

Bib: 30258 β€’F β€’Age: N/A

NH

Boston Marathon logo
0:00
0:00
/ mi
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
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
36:24
3.11 mi
Rank: #28668
Start β†’ 5K
36:24 | 11:43/mi
10K
1:13:25
6.21 mi
Rank: #28618 (+50)
5K β†’ 10K
37:01 | 11:55/mi
15K
1:50:23
9.32 mi
Rank: #28521 (+97)
10K β†’ 15K
36:58 | 11:54/mi
20K
2:28:42
12.43 mi
Rank: #28462 (+59)
15K β†’ 20K
38:19 | 12:20/mi
HALF
2:36:48
13.11 mi
Rank: #28451 (+11)
20K β†’ HALF
8:06 | 11:53/mi
25K
3:07:41
15.53 mi
Rank: #28395 (+56)
HALF β†’ 25K
30:53 | 12:45/mi
30K
3:49:32
18.64 mi
Rank: #28349 (+46)
25K β†’ 30K
41:51 | 13:29/mi
20M
4:08:32
20.00 mi
Rank: #28347 (+2)
30K β†’ 20M
19:00 | 14:00/mi
21M
4:22:50
21.00 mi
Rank: #28323 (+24)
20M β†’ 21M
14:18 | 14:18/mi
35K
4:33:12
21.75 mi
Rank: #28332 (-9)
21M β†’ 35K
10:22 | 13:52/mi
23M
4:50:59
23.00 mi
Rank: #28352 (-20)
35K β†’ 23M
17:47 | 14:13/mi
24M
5:05:02
24.00 mi
Rank: #28362 (-10)
23M β†’ 24M
14:03 | 14:03/mi
40K
5:17:22
24.85 mi
Rank: #28373 (-11)
24M β†’ 40K
12:20 | 14:26/mi
25.2M
5:22:40
25.20 mi
Rank: #28379 (-6)
40K β†’ 25.2M
5:18 | 15:23/mi
FINISH
5:35:59
26.22 mi
Rank: #28380 (-1)
25.2M β†’ FINISH
13:19 | 13:05/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time2:36:48
Pace11:58 /mi
2nd Half
Distance13.11 mi
Time2:59:11
Pace13:41 /mi
πŸ“ŠPositive Split: 14.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi12:06:1136:2411:4336:24
11:43
-
10K
6.21 mi12:43:121:13:2511:4937:01
11:55
+0:12
15K
9.32 mi13:20:101:50:2311:5136:58
11:54
-0:01
20K
12.43 mi13:58:292:28:4211:5838:19
12:20
+0:26
HALF
13.11 mi14:06:352:36:4811:588:06
11:53
-0:27
25K
15.53 mi14:37:283:07:4112:0530:53
12:45
+0:52
30K
18.64 mi15:19:193:49:3212:1941:51
13:29
+0:44
20M
20.00 mi15:38:194:08:3212:2619:00
14:00
+0:31
21M
21.00 mi15:52:374:22:5012:3114:18
14:18
+0:18
35K
21.75 mi16:02:594:33:1212:3410:22
13:52
-0:26
23M
23.00 mi16:20:464:50:5912:4017:47
14:13
+0:21
24M
24.00 mi16:34:495:05:0212:4314:03
14:03
-0:10
40K
24.85 mi16:47:095:17:2212:4712:20
14:26
+0:23
25.2M
25.20 mi16:52:275:22:4012:495:18
15:23
+0:57
FINISH
26.22 mi17:05:465:35:5912:5013:19
13:05
-2:18

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

11:43 /mi

Average Pace

12:49 /mi

Slowest Pace

15:23 /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

3:07:41

56% of race

Time at Steady Pace

1:24:32

25% of race

Time at Slower Pace

1:03:46

19% of race

Average Pace: 12:49 /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 mi12:06:1136:2411:4336:24
11:43
#28668
10K
6.21 mi12:43:121:13:2511:4937:01
11:55
#28618
15K
9.32 mi13:20:101:50:2311:5136:58
11:54
#28521
20K
12.43 mi13:58:292:28:4211:5838:19
12:20
#28462
HALF
13.11 mi14:06:352:36:4811:588:06
11:53
#28451
25K
15.53 mi14:37:283:07:4112:0530:53
12:45
#28395
30K
18.64 mi15:19:193:49:3212:1941:51
13:29
#28349
20M
20.00 mi15:38:194:08:3212:2619:00
14:00
#28347
21M
21.00 mi15:52:374:22:5012:3114:18
14:18
#28323
35K
21.75 mi16:02:594:33:1212:3410:22
13:52
#28332
23M
23.00 mi16:20:464:50:5912:4017:47
14:13
#28352
24M
24.00 mi16:34:495:05:0212:4314:03
14:03
#28362
40K
24.85 mi16:47:095:17:2212:4712:20
14:26
#28373
25.2M
25.20 mi16:52:275:22:4012:495:18
15:23
#28379
FINISH
26.22 mi17:05:465:35:5912:5013:19
13:05
#28380
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 mi28668123351233528286(Top 97%)12107(Top 96%)12107(Top 212%)
10K6.21 mi3.10 mi28618+5012301+3412301+3428526(Top 98%)12241(Top 97%)12241(Top 214%)
15K9.32 mi3.11 mi28521+9712239+6212239+6228286(Top 97%)12107(Top 96%)12107(Top 212%)
20K12.43 mi3.11 mi28462+5912197+4212197+4228275(Top 97%)12095(Top 96%)12095(Top 212%)
HALF13.11 mi0.68 mi28451+1112192+512192+528207(Top 97%)12084(Top 96%)12084(Top 211%)
25K15.53 mi2.42 mi28395+5612160+3212160+3228085(Top 97%)12006(Top 95%)12006(Top 210%)
30K18.64 mi3.11 mi28349+4612141+1912141+1928063(Top 97%)12041(Top 96%)12041(Top 211%)
20M20.00 mi1.36 mi28347+212144-312144-328113(Top 97%)12106(Top 96%)12106(Top 212%)
21M21.00 mi1.00 mi28323+2412125+1912125+1927583(Top 95%)11846(Top 94%)11846(Top 207%)
35K21.75 mi0.75 mi28332-912136-1112136-1128282(Top 97%)12243(Top 97%)12243(Top 214%)
23M23.00 mi1.25 mi28352-2012155-1912155-1928286(Top 97%)12237(Top 97%)12237(Top 214%)
24M24.00 mi1.00 mi28362-1012169-1412169-1428374(Top 98%)12302(Top 98%)12302(Top 215%)
40K24.85 mi0.85 mi28373-1112180-1112180-1128174(Top 97%)12205(Top 97%)12205(Top 214%)
25.2M25.20 mi0.35 mi28379-612187-712187-728132(Top 97%)12193(Top 97%)12193(Top 213%)
FINISH26.22 mi1.02 mi28380-112192-512192-528258(Top 97%)12247(Top 97%)12247(Top 214%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
Γ—21
+97ft-345ft

Overall

28286

Females

12107

F18-39

12107

5K→10K

3.1 - 6.2 mi

Top 98%
Γ—5
+79ft-138ft

Overall

28526

Females

12241

F18-39

12241

10K→15K

6.2 - 9.3 mi

Top 97%
Γ—3
+67ft-78ft

Overall

28286

Females

12107

F18-39

12107

15K→20K

9.3 - 12.4 mi

Top 97%
Γ—5
+106ft-86ft

Overall

28275

Females

12095

F18-39

12095

20K→HALF

12.4 - 13.1 mi

Top 97%
Γ—2
+19ft-37ft

Overall

28207

Females

12084

F18-39

12084

HALF→25K

13.1 - 15.5 mi

Top 97%
Γ—4
+66ft-88ft

Overall

28085

Females

12006

F18-39

12006

25K→30K

15.5 - 18.6 mi

Top 97%
Γ—9
+181ft-148ft

Overall

28063

Females

12041

F18-39

12041

30K→20M

18.6 - 20.0 mi

Top 97%
Γ—5
+64ft-50ft

Overall

28113

Females

12106

F18-39

12106

20M→21M

20.0 - 21.0 mi

Top 95%
Γ—8
+106ft-24ft

Overall

27583

Females

11846

F18-39

11846

21M→35K

21.0 - 21.8 mi

Top 97%
Γ—7
+17ft-86ft

Overall

28282

Females

12243

F18-39

12243

35K→23M

21.8 - 23.0 mi

Top 97%
Γ—5
+23ft-63ft

Overall

28286

Females

12237

F18-39

12237

23M→24M

23.0 - 24.0 mi

Top 98%
Γ—6
+12ft-82ft

Overall

28374

Females

12302

F18-39

12302

24M→40K

24.0 - 24.9 mi

Top 97%
Γ—1
+6ft-20ft

Overall

28174

Females

12205

F18-39

12205

40K→25.2M

24.9 - 25.2 mi

Top 97%
Γ—1
+13ft-16ft

Overall

28132

Females

12193

F18-39

12193

25.2M→FINISH

25.2 - 26.2 mi

Top 97%
Γ—2
+22ft-21ft

Overall

28258

Females

12247

F18-39

12247

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
577
Passed By
289
Net Change
+288
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start β†’ 5K----#28668
5K β†’ 10K8838+50#28668#28618
10K β†’ 15K11922+97#28618#28521
15K β†’ 20K8829+59#28521#28462
20K β†’ HALF143+11#28462#28451
HALF β†’ 25K7418+56#28451#28395
25K β†’ 30K7832+46#28395#28349
30K β†’ 20M1816+2#28349#28347
20M β†’ 21M328+24#28347#28323
21M β†’ 35K1221-9#28323#28332
35K β†’ 23M1535-20#28332#28352
23M β†’ 24M1222-10#28352#28362
24M β†’ 40K1122-11#28362#28373
40K β†’ 25.2M39-6#28373#28379
25.2M β†’ FINISH1314-1#28379#28380
TOTALS577289+288
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

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