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BOSTON MARATHON 2026

Nancy Alpert

Bib: 17135•F

CA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 48%
Gender (Female)
#0 / 12578
Top 34%
Masters (Masters Women)
#0 / 6862
Top 18%
Age Group (F45-49)
#0 / 1786
Top 20%
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
23:41
3.11 mi
Rank: #13860
Start → 5K
23:41 | 7:38/mi
10K
47:06
6.21 mi
Rank: #13547 (+313)
5K → 10K
23:25 | 7:33/mi
15K
1:10:37
9.32 mi
Rank: #13469 (+78)
10K → 15K
23:31 | 7:35/mi
20K
1:34:39
12.43 mi
Rank: #13572 (-103)
15K → 20K
24:02 | 7:45/mi
HALF
1:39:38
13.11 mi
Rank: #13455 (+117)
20K → HALF
4:59 | 7:19/mi
25K
1:58:08
15.53 mi
Rank: #13287 (+168)
HALF → 25K
18:30 | 7:38/mi
30K
2:22:01
18.64 mi
Rank: #12860 (+427)
25K → 30K
23:53 | 7:42/mi
20M
2:32:30
20.00 mi
Rank: #12686 (+174)
30K → 20M
10:29 | 7:44/mi
21M
2:40:51
21.00 mi
Rank: #12637 (+49)
20M → 21M
8:21 | 8:21/mi
35K
2:46:25
21.75 mi
Rank: #12541 (+96)
21M → 35K
5:34 | 7:27/mi
23M
2:56:32
23.00 mi
Rank: #12550 (-9)
35K → 23M
10:07 | 8:06/mi
24M
3:04:41
24.00 mi
Rank: #12638 (-88)
23M → 24M
8:09 | 8:09/mi
40K
3:12:25
24.85 mi
Rank: #12891 (-253)
24M → 40K
7:44 | 9:03/mi
25.2M
3:16:58
25.20 mi
Rank: #13355 (-464)
40K → 25.2M
4:33 | 13:12/mi
FINISH
3:26:34
26.22 mi
Rank: #13877 (-522)
25.2M → FINISH
9:36 | 9:26/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:39:38
Pace7:37 /mi
2nd Half
Distance13.11 mi
Time1:46:56
Pace8:10 /mi
📊Positive Split: 7.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:04:5523:417:3823:41
7:38
-
10K
6.21 mi11:28:2047:067:3523:25
7:33
-0:05
15K
9.32 mi11:51:511:10:377:3523:31
7:35
+0:02
20K
12.43 mi12:15:531:34:397:3724:02
7:45
+0:10
HALF
13.11 mi12:20:521:39:387:374:59
7:19
-0:26
25K
15.53 mi12:39:221:58:087:3718:30
7:38
+0:19
30K
18.64 mi13:03:152:22:017:3823:53
7:42
+0:04
20M
20.00 mi13:13:442:32:307:3810:29
7:44
+0:02
21M
21.00 mi13:22:052:40:517:408:21
8:21
+0:37
35K
21.75 mi13:27:392:46:257:405:34
7:27
-0:54
23M
23.00 mi13:37:462:56:327:4110:07
8:06
+0:39
24M
24.00 mi13:45:553:04:417:428:09
8:09
+0:03
40K
24.85 mi13:53:393:12:257:457:44
9:03
+0:54
25.2M
25.20 mi13:58:123:16:587:494:33
13:12
+4:09
FINISH
26.22 mi14:07:483:26:347:549:36
9:26
-3:46

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

7:19 /mi

Average Pace

7:53 /mi

Slowest Pace

13:12 /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

0:00

0% of race

Time at Steady Pace

3:04:41

89% of race

Time at Slower Pace

21:53

11% of race

Average Pace: 7:53 /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 mi11:04:5523:417:3823:41
7:38
#13860
10K
6.21 mi11:28:2047:067:3523:25
7:33
#13547
15K
9.32 mi11:51:511:10:377:3523:31
7:35
#13469
20K
12.43 mi12:15:531:34:397:3724:02
7:45
#13572
HALF
13.11 mi12:20:521:39:387:374:59
7:19
#13455
25K
15.53 mi12:39:221:58:087:3718:30
7:38
#13287
30K
18.64 mi13:03:152:22:017:3823:53
7:42
#12860
20M
20.00 mi13:13:442:32:307:3810:29
7:44
#12686
21M
21.00 mi13:22:052:40:517:408:21
8:21
#12637
35K
21.75 mi13:27:392:46:257:405:34
7:27
#12541
23M
23.00 mi13:37:462:56:327:4110:07
8:06
#12550
24M
24.00 mi13:45:553:04:417:428:09
8:09
#12638
40K
24.85 mi13:53:393:12:257:457:44
9:03
#12891
25.2M
25.20 mi13:58:123:16:587:494:33
13:12
#13355
FINISH
26.22 mi14:07:483:26:347:549:36
9:26
#13877
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 mi138603992399213428(Top 46%)3825(Top 30%)3825(Top 214%)
10K6.21 mi3.10 mi13547+3133837+1553837+15513278(Top 46%)3701(Top 29%)3701(Top 207%)
15K9.32 mi3.11 mi13469+783819+183819+1813428(Top 46%)3825(Top 30%)3825(Top 214%)
20K12.43 mi3.11 mi13572-1033892-733892-7314035(Top 48%)4240(Top 34%)4240(Top 237%)
HALF13.11 mi0.68 mi13455+1173829+633829+6311404(Top 39%)2724(Top 22%)2724(Top 153%)
25K15.53 mi2.42 mi13287+1683757+723757+7212503(Top 43%)3444(Top 27%)3444(Top 193%)
30K18.64 mi3.11 mi12860+4273575+1823575+18211156(Top 38%)2850(Top 23%)2850(Top 160%)
20M20.00 mi1.36 mi12686+1743509+663509+6610786(Top 37%)2792(Top 22%)2792(Top 156%)
21M21.00 mi1.00 mi12637+493505+43505+412211(Top 42%)3650(Top 29%)3650(Top 204%)
35K21.75 mi0.75 mi12541+963458+473458+4710488(Top 36%)2750(Top 22%)2750(Top 154%)
23M23.00 mi1.25 mi12550-93490-323490-3213057(Top 45%)4192(Top 33%)4192(Top 235%)
24M24.00 mi1.00 mi12638-883550-603550-6014760(Top 51%)5196(Top 41%)5196(Top 291%)
40K24.85 mi0.85 mi12891-2533718-1683718-16818615(Top 64%)7366(Top 59%)7366(Top 412%)
25.2M25.20 mi0.35 mi13355-4643993-2753993-27526323(Top 91%)11277(Top 90%)11277(Top 631%)
FINISH26.22 mi1.02 mi13877-5224312-3194312-31922095(Top 76%)9115(Top 72%)9115(Top 510%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 46%
×21
+97ft-345ft

Overall

13428

Females

3825

F45-49

3825

5K→10K

3.1 - 6.2 mi

Top 46%
×5
+79ft-138ft

Overall

13278

Females

3701

F45-49

3701

10K→15K

6.2 - 9.3 mi

Top 46%
×3
+67ft-78ft

Overall

13428

Females

3825

F45-49

3825

15K→20K

9.3 - 12.4 mi

Top 48%
×5
+106ft-86ft

Overall

14035

Females

4240

F45-49

4240

20K→HALF

12.4 - 13.1 mi

Top 39%
×2
+19ft-37ft

Overall

11404

Females

2724

F45-49

2724

HALF→25K

13.1 - 15.5 mi

Top 43%
×4
+66ft-88ft

Overall

12503

Females

3444

F45-49

3444

25K→30K

15.5 - 18.6 mi

Top 38%
×9
+181ft-148ft

Overall

11156

Females

2850

F45-49

2850

30K→20M

18.6 - 20.0 mi

Top 37%
×5
+64ft-50ft

Overall

10786

Females

2792

F45-49

2792

20M→21M

20.0 - 21.0 mi

Top 42%
×8
+106ft-24ft

Overall

12211

Females

3650

F45-49

3650

21M→35K

21.0 - 21.8 mi

Top 36%
×7
+17ft-86ft

Overall

10488

Females

2750

F45-49

2750

35K→23M

21.8 - 23.0 mi

Top 45%
×5
+23ft-63ft

Overall

13057

Females

4192

F45-49

4192

23M→24M

23.0 - 24.0 mi

Top 51%
×6
+12ft-82ft

Overall

14760

Females

5196

F45-49

5196

24M→40K

24.0 - 24.9 mi

Top 64%
×1
+6ft-20ft

Overall

18615

Females

7366

F45-49

7366

40K→25.2M

24.9 - 25.2 mi

Top 91%
×1
+13ft-16ft

Overall

26323

Females

11277

F45-49

11277

25.2M→FINISH

25.2 - 26.2 mi

Top 76%
×2
+22ft-21ft

Overall

22095

Females

9115

F45-49

9115

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2207*
Passed By
1515
Net Change
-17
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13860
5K → 10K487*174+313#13860#13547
10K → 15K237*159+78#13547#13469
15K → 20K133200-103#13469#13572
20K → HALF1181+117#13572#13455
HALF → 25K209*41+168#13455#13287
25K → 30K449*22+427#13287#12860
30K → 20M18814+174#12860#12686
20M → 21M10960+49#12686#12637
21M → 35K10610+96#12637#12541
35K → 23M9099-9#12541#12550
23M → 24M47135-88#12550#12638
24M → 40K25200-253#12638#12891
40K → 25.2M0200-464#12891#13355
25.2M → FINISH9200-522#13355#13877
TOTALS2207*1515-17

* 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