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BOSTON MARATHON 2026

Marissa Piazza

Bib: 16878•F

NJ

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0:00
/ mi
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Overall
#0 / 29021
Top 36%
Gender (Female)
#0 / 12578
Top 19%
Age Group (F18-39)
#0 / 5716
Top 35%
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
23:50
3.11 mi
Rank: #14292
Start → 5K
23:50 | 7:41/mi
10K
47:23
6.21 mi
Rank: #13971 (+321)
5K → 10K
23:33 | 7:35/mi
15K
1:11:00
9.32 mi
Rank: #13816 (+155)
10K → 15K
23:37 | 7:37/mi
20K
1:34:25
12.43 mi
Rank: #13409 (+407)
15K → 20K
23:25 | 7:33/mi
HALF
1:39:26
13.11 mi
Rank: #13334 (+75)
20K → HALF
5:01 | 7:22/mi
25K
1:57:38
15.53 mi
Rank: #13031 (+303)
HALF → 25K
18:12 | 7:31/mi
30K
2:20:50
18.64 mi
Rank: #12337 (+694)
25K → 30K
23:12 | 7:29/mi
20M
2:30:48
20.00 mi
Rank: #11992 (+345)
30K → 20M
9:58 | 7:21/mi
21M
2:38:16
21.00 mi
Rank: #11627 (+365)
20M → 21M
7:28 | 7:28/mi
35K
2:43:38
21.75 mi
Rank: #11459 (+168)
21M → 35K
5:22 | 7:11/mi
23M
2:52:54
23.00 mi
Rank: #11199 (+260)
35K → 23M
9:16 | 7:25/mi
24M
3:00:01
24.00 mi
Rank: #10974 (+225)
23M → 24M
7:07 | 7:07/mi
40K
3:06:16
24.85 mi
Rank: #10800 (+174)
24M → 40K
6:15 | 7:19/mi
25.2M
3:08:53
25.20 mi
Rank: #10698 (+102)
40K → 25.2M
2:37 | 7:36/mi
FINISH
3:15:39
26.22 mi
Rank: #10435 (+263)
25.2M → FINISH
6:46 | 6:39/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st Half
via HALF
Distance13.11 mi
Time1:39:26
Pace7:36 /mi
2nd Half✓ Faster
Distance13.11 mi
Time1:36:13
Pace7:21 /mi
📊Negative Split: 3.2% faster second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:05:3123:507:4123:50
7:41
-
10K
6.21 mi11:29:0447:237:3823:33
7:35
-0:06
15K
9.32 mi11:52:411:11:007:3823:37
7:37
+0:02
20K
12.43 mi12:16:061:34:257:3623:25
7:33
-0:04
HALF
13.11 mi12:21:071:39:267:365:01
7:22
-0:11
25K
15.53 mi12:39:191:57:387:3518:12
7:31
+0:09
30K
18.64 mi13:02:312:20:507:3423:12
7:29
-0:02
20M
20.00 mi13:12:292:30:487:339:58
7:21
-0:08
21M
21.00 mi13:19:572:38:167:337:28
7:28
+0:07
35K
21.75 mi13:25:192:43:387:325:22
7:11
-0:17
23M
23.00 mi13:34:352:52:547:329:16
7:25
+0:14
24M
24.00 mi13:41:423:00:017:317:07
7:07
-0:18
40K
24.85 mi13:47:573:06:167:306:15
7:19
+0:12
25.2M
25.20 mi13:50:343:08:537:302:37
7:36
+0:17
FINISH
26.22 mi13:57:203:15:397:296:46
6:39
-0:57

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

6:39 /mi

Average Pace

7:28 /mi

Slowest Pace

7:41 /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

19:15

10% of race

Time at Steady Pace

2:56:24

90% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:28 /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 mi11:05:3123:507:4123:50
7:41
#14292
10K
6.21 mi11:29:0447:237:3823:33
7:35
#13971
15K
9.32 mi11:52:411:11:007:3823:37
7:37
#13816
20K
12.43 mi12:16:061:34:257:3623:25
7:33
#13409
HALF
13.11 mi12:21:071:39:267:365:01
7:22
#13334
25K
15.53 mi12:39:191:57:387:3518:12
7:31
#13031
30K
18.64 mi13:02:312:20:507:3423:12
7:29
#12337
20M
20.00 mi13:12:292:30:487:339:58
7:21
#11992
21M
21.00 mi13:19:572:38:167:337:28
7:28
#11627
35K
21.75 mi13:25:192:43:387:325:22
7:11
#11459
23M
23.00 mi13:34:352:52:547:329:16
7:25
#11199
24M
24.00 mi13:41:423:00:017:317:07
7:07
#10974
40K
24.85 mi13:47:573:06:167:306:15
7:19
#10800
25.2M
25.20 mi13:50:343:08:537:302:37
7:36
#10698
FINISH
26.22 mi13:57:203:15:397:296:46
6:39
#10435
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 mi142924247424713671(Top 47%)3951(Top 31%)3951(Top 69%)
10K6.21 mi3.10 mi13971+3214067+1804067+18013679(Top 47%)3921(Top 31%)3921(Top 69%)
15K9.32 mi3.11 mi13816+1554010+574010+5713671(Top 47%)3951(Top 31%)3951(Top 69%)
20K12.43 mi3.11 mi13409+4073800+2103800+21012298(Top 42%)3266(Top 26%)3266(Top 57%)
HALF13.11 mi0.68 mi13334+753763+373763+3711756(Top 41%)2869(Top 23%)2869(Top 50%)
25K15.53 mi2.42 mi13031+3033620+1433620+14311464(Top 40%)2872(Top 23%)2872(Top 50%)
30K18.64 mi3.11 mi12337+6943271+3493271+3499416(Top 32%)2006(Top 16%)2006(Top 35%)
20M20.00 mi1.36 mi11992+3453102+1693102+1697986(Top 28%)1483(Top 12%)1483(Top 26%)
21M21.00 mi1.00 mi11627+3652908+1942908+1946320(Top 22%)984(Top 8%)984(Top 17%)
35K21.75 mi0.75 mi11459+1682829+792829+798431(Top 29%)1768(Top 14%)1768(Top 31%)
23M23.00 mi1.25 mi11199+2602734+952734+958213(Top 28%)1739(Top 14%)1739(Top 30%)
24M24.00 mi1.00 mi10974+2252654+802654+807318(Top 25%)1436(Top 11%)1436(Top 25%)
40K24.85 mi0.85 mi10800+1742583+712583+717561(Top 26%)1621(Top 13%)1621(Top 28%)
25.2M25.20 mi0.35 mi10698+1022537+462537+465876(Top 20%)1049(Top 8%)1049(Top 18%)
FINISH26.22 mi1.02 mi10435+2632434+1032434+1035098(Top 18%)839(Top 7%)839(Top 15%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 47%
×21
+97ft-345ft

Overall

13671

Females

3951

F18-39

3951

5K→10K

3.1 - 6.2 mi

Top 47%
×5
+79ft-138ft

Overall

13679

Females

3921

F18-39

3921

10K→15K

6.2 - 9.3 mi

Top 47%
×3
+67ft-78ft

Overall

13671

Females

3951

F18-39

3951

15K→20K

9.3 - 12.4 mi

Top 42%
×5
+106ft-86ft

Overall

12298

Females

3266

F18-39

3266

20K→HALF

12.4 - 13.1 mi

Top 41%
×2
+19ft-37ft

Overall

11756

Females

2869

F18-39

2869

HALF→25K

13.1 - 15.5 mi

Top 40%
×4
+66ft-88ft

Overall

11464

Females

2872

F18-39

2872

25K→30K

15.5 - 18.6 mi

Top 32%
×9
+181ft-148ft

Overall

9416

Females

2006

F18-39

2006

30K→20M

18.6 - 20.0 mi

Top 28%
×5
+64ft-50ft

Overall

7986

Females

1483

F18-39

1483

20M→21M

20.0 - 21.0 mi

Top 22%
×8
+106ft-24ft

Overall

6320

Females

984

F18-39

984

21M→35K

21.0 - 21.8 mi

Top 29%
×7
+17ft-86ft

Overall

8431

Females

1768

F18-39

1768

35K→23M

21.8 - 23.0 mi

Top 28%
×5
+23ft-63ft

Overall

8213

Females

1739

F18-39

1739

23M→24M

23.0 - 24.0 mi

Top 25%
×6
+12ft-82ft

Overall

7318

Females

1436

F18-39

1436

24M→40K

24.0 - 24.9 mi

Top 26%
×1
+6ft-20ft

Overall

7561

Females

1621

F18-39

1621

40K→25.2M

24.9 - 25.2 mi

Top 20%
×1
+13ft-16ft

Overall

5876

Females

1049

F18-39

1049

25.2M→FINISH

25.2 - 26.2 mi

Top 18%
×2
+22ft-21ft

Overall

5098

Females

839

F18-39

839

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
4220*
Passed By
363
Net Change
+3857
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14292
5K → 10K485*164+321#14292#13971
10K → 15K282*127+155#13971#13816
15K → 20K429*22+407#13816#13409
20K → HALF816+75#13409#13334
HALF → 25K318*15+303#13334#13031
25K → 30K696*2+694#13031#12337
30K → 20M345*0+345#12337#11992
20M → 21M365*0+365#11992#11627
21M → 35K1735+168#11627#11459
35K → 23M271*11+260#11459#11199
23M → 24M227*2+225#11199#10974
24M → 40K1817+174#10974#10800
40K → 25.2M1020+102#10800#10698
25.2M → FINISH265*2+263#10698#10435
TOTALS4220*363+3857

* 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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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing