Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing

Barbara Valsoni

Bib: 20527FAge: N/A

MB

Boston Marathon logo
0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Gender (Female)
#0 / 12578
Top 39%
Masters (Masters Women)
#0 / 6862
Top 24%
Age Group (F50-54)
#0 / 1233
Top 17%
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
24:21
3.11 mi
Rank: #15736
Start5K
24:21 | 7:51/mi
10K
48:54
6.21 mi
Rank: #16057 (-321)
5K10K
24:33 | 7:55/mi
15K
1:13:49
9.32 mi
Rank: #16439 (-382)
10K15K
24:55 | 8:02/mi
20K
1:38:49
12.43 mi
Rank: #16455 (-16)
15K20K
25:00 | 8:03/mi
HALF
1:44:13
13.11 mi
Rank: #16443 (+12)
20KHALF
5:24 | 7:56/mi
25K
2:03:43
15.53 mi
Rank: #16292 (+151)
HALF25K
19:30 | 8:03/mi
30K
2:29:11
18.64 mi
Rank: #16007 (+285)
25K30K
25:28 | 8:12/mi
20M
2:40:11
20.00 mi
Rank: #15814 (+193)
30K20M
11:00 | 8:06/mi
21M
2:48:50
21.00 mi
Rank: #15672 (+142)
20M21M
8:39 | 8:39/mi
35K
2:54:40
21.75 mi
Rank: #15556 (+116)
21M35K
5:50 | 7:48/mi
23M
3:04:54
23.00 mi
Rank: #15433 (+123)
35K23M
10:14 | 8:11/mi
24M
3:12:50
24.00 mi
Rank: #15321 (+112)
23M24M
7:56 | 7:56/mi
40K
3:19:43
24.85 mi
Rank: #15215 (+106)
24M40K
6:53 | 8:04/mi
25.2M
3:22:39
25.20 mi
Rank: #15134 (+81)
40K25.2M
2:56 | 8:31/mi
FINISH
3:30:19
26.22 mi
Rank: #15011 (+123)
25.2MFINISH
7:40 | 7:32/mi
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Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:44:13
Pace7:57 /mi
2nd Half
Distance13.11 mi
Time1:46:06
Pace8:06 /mi
📊Positive Split: 1.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:08:5024:217:5124:21
7:51
-
10K
6.21 mi11:33:2348:547:5324:33
7:55
+0:04
15K
9.32 mi11:58:181:13:497:5624:55
8:02
+0:07
20K
12.43 mi12:23:181:38:497:5825:00
8:03
+0:01
HALF
13.11 mi12:28:421:44:137:575:24
7:56
-0:07
25K
15.53 mi12:48:122:03:437:5819:30
8:03
+0:07
30K
18.64 mi13:13:402:29:118:0125:28
8:12
+0:09
20M
20.00 mi13:24:402:40:118:0111:00
8:06
-0:06
21M
21.00 mi13:33:192:48:508:038:39
8:39
+0:33
35K
21.75 mi13:39:092:54:408:025:50
7:48
-0:51
23M
23.00 mi13:49:233:04:548:0310:14
8:11
+0:23
24M
24.00 mi13:57:193:12:508:037:56
7:56
-0:15
40K
24.85 mi14:04:123:19:438:036:53
8:04
+0:08
25.2M
25.20 mi14:07:083:22:398:032:56
8:31
+0:27
FINISH
26.22 mi14:14:483:30:198:027:40
7:32
-0:59

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

7:32 /mi

Average Pace

8:02 /mi

Slowest Pace

8:39 /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

3:18:44

94% of race

Time at Steady Pace

11:35

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 8:01 /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 mi11:08:5024:217:5124:21
7:51
#15736
10K
6.21 mi11:33:2348:547:5324:33
7:55
#16057
15K
9.32 mi11:58:181:13:497:5624:55
8:02
#16439
20K
12.43 mi12:23:181:38:497:5825:00
8:03
#16455
HALF
13.11 mi12:28:421:44:137:575:24
7:56
#16443
25K
15.53 mi12:48:122:03:437:5819:30
8:03
#16292
30K
18.64 mi13:13:402:29:118:0125:28
8:12
#16007
20M
20.00 mi13:24:402:40:118:0111:00
8:06
#15814
21M
21.00 mi13:33:192:48:508:038:39
8:39
#15672
35K
21.75 mi13:39:092:54:408:025:50
7:48
#15556
23M
23.00 mi13:49:233:04:548:0310:14
8:11
#15433
24M
24.00 mi13:57:193:12:508:037:56
7:56
#15321
40K
24.85 mi14:04:123:19:438:036:53
8:04
#15215
25.2M
25.20 mi14:07:083:22:398:032:56
8:31
#15134
FINISH
26.22 mi14:14:483:30:198:027:40
7:32
#15011
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF50-54Seg. OverallSeg. FemalesSeg. F50-54
5K3.11 mi3.11 mi157365144514417166(Top 59%)6000(Top 48%)6000(Top 487%)
10K6.21 mi3.10 mi16057-3215371-2275371-22716481(Top 57%)5607(Top 45%)5607(Top 455%)
15K9.32 mi3.11 mi16439-3825601-2305601-23017166(Top 59%)6000(Top 48%)6000(Top 487%)
20K12.43 mi3.11 mi16455-165615-145615-1416465(Top 57%)5629(Top 45%)5629(Top 457%)
HALF13.11 mi0.68 mi16443+125612+35612+316548(Top 57%)5640(Top 45%)5640(Top 457%)
25K15.53 mi2.42 mi16292+1515540+725540+7215716(Top 54%)5255(Top 42%)5255(Top 426%)
30K18.64 mi3.11 mi16007+2855407+1335407+13314914(Top 51%)4927(Top 39%)4927(Top 400%)
20M20.00 mi1.36 mi15814+1935307+1005307+10013565(Top 47%)4277(Top 34%)4277(Top 347%)
21M21.00 mi1.00 mi15672+1425245+625245+6214104(Top 49%)4644(Top 37%)4644(Top 377%)
35K21.75 mi0.75 mi15556+1165195+505195+5013103(Top 45%)4147(Top 33%)4147(Top 336%)
23M23.00 mi1.25 mi15433+1235151+445151+4413669(Top 47%)4540(Top 36%)4540(Top 368%)
24M24.00 mi1.00 mi15321+1125101+505101+5013325(Top 46%)4432(Top 35%)4432(Top 359%)
40K24.85 mi0.85 mi15215+1065057+445057+4412893(Top 44%)4276(Top 34%)4276(Top 347%)
25.2M25.20 mi0.35 mi15134+815017+405017+4011784(Top 41%)3771(Top 30%)3771(Top 306%)
FINISH26.22 mi1.02 mi15011+1234960+574960+5711671(Top 40%)3705(Top 29%)3705(Top 300%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 59%
×21
+97ft-345ft

Overall

17166

Females

6000

F50-54

6000

5K→10K

3.1 - 6.2 mi

Top 57%
×5
+79ft-138ft

Overall

16481

Females

5607

F50-54

5607

10K→15K

6.2 - 9.3 mi

Top 59%
×3
+67ft-78ft

Overall

17166

Females

6000

F50-54

6000

15K→20K

9.3 - 12.4 mi

Top 57%
×5
+106ft-86ft

Overall

16465

Females

5629

F50-54

5629

20K→HALF

12.4 - 13.1 mi

Top 57%
×2
+19ft-37ft

Overall

16548

Females

5640

F50-54

5640

HALF→25K

13.1 - 15.5 mi

Top 54%
×4
+66ft-88ft

Overall

15716

Females

5255

F50-54

5255

25K→30K

15.5 - 18.6 mi

Top 51%
×9
+181ft-148ft

Overall

14914

Females

4927

F50-54

4927

30K→20M

18.6 - 20.0 mi

Top 47%
×5
+64ft-50ft

Overall

13565

Females

4277

F50-54

4277

20M→21M

20.0 - 21.0 mi

Top 49%
×8
+106ft-24ft

Overall

14104

Females

4644

F50-54

4644

21M→35K

21.0 - 21.8 mi

Top 45%
×7
+17ft-86ft

Overall

13103

Females

4147

F50-54

4147

35K→23M

21.8 - 23.0 mi

Top 47%
×5
+23ft-63ft

Overall

13669

Females

4540

F50-54

4540

23M→24M

23.0 - 24.0 mi

Top 46%
×6
+12ft-82ft

Overall

13325

Females

4432

F50-54

4432

24M→40K

24.0 - 24.9 mi

Top 44%
×1
+6ft-20ft

Overall

12893

Females

4276

F50-54

4276

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1
+13ft-16ft

Overall

11784

Females

3771

F50-54

3771

25.2M→FINISH

25.2 - 26.2 mi

Top 40%
×2
+22ft-21ft

Overall

11671

Females

3705

F50-54

3705

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2185*
Passed By
900
Net Change
+725
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#15736
5K10K164200-321#15736#16057
10K15K90200-382#16057#16439
15K20K187200-16#16439#16455
20KHALF4028+12#16455#16443
HALF25K214*63+151#16443#16292
25K30K335*50+285#16292#16007
30K20M206*13+193#16007#15814
20M21M18240+142#15814#15672
21M35K12812+116#15672#15556
35K23M15835+123#15556#15433
23M24M13321+112#15433#15321
24M40K12418+106#15321#15215
40K25.2M887+81#15215#15134
25.2MFINISH13613+123#15134#15011
TOTALS2185*900+725

* 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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Activity Data

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