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BOSTON MARATHON 2026

Jennifer Laforce

Bib: 21440•F

GA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 44%
Gender (Female)
#0 / 12578
Top 29%
Masters (Masters Women)
#0 / 6862
Top 13%
Age Group (F45-49)
#0 / 1786
Top 14%
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
23:52
3.11 mi
Rank: #14393
Start → 5K
23:52 | 7:41/mi
10K
47:43
6.21 mi
Rank: #14433 (-40)
5K → 10K
23:51 | 7:41/mi
15K
1:11:41
9.32 mi
Rank: #14470 (-37)
10K → 15K
23:58 | 7:43/mi
20K
1:35:30
12.43 mi
Rank: #14186 (+284)
15K → 20K
23:49 | 7:40/mi
HALF
1:40:36
13.11 mi
Rank: #14088 (+98)
20K → HALF
5:06 | 7:29/mi
25K
1:59:03
15.53 mi
Rank: #13764 (+324)
HALF → 25K
18:27 | 7:37/mi
30K
2:23:15
18.64 mi
Rank: #13406 (+358)
25K → 30K
24:12 | 7:48/mi
20M
2:34:00
20.00 mi
Rank: #13286 (+120)
30K → 20M
10:45 | 7:55/mi
21M
2:42:24
21.00 mi
Rank: #13217 (+69)
20M → 21M
8:24 | 8:24/mi
35K
2:48:06
21.75 mi
Rank: #13147 (+70)
21M → 35K
5:42 | 7:38/mi
23M
2:57:56
23.00 mi
Rank: #13042 (+105)
35K → 23M
9:50 | 7:52/mi
24M
3:05:32
24.00 mi
Rank: #12925 (+117)
23M → 24M
7:36 | 7:36/mi
40K
3:12:12
24.85 mi
Rank: #12818 (+107)
24M → 40K
6:40 | 7:48/mi
25.2M
3:15:05
25.20 mi
Rank: #12771 (+47)
40K → 25.2M
2:53 | 8:22/mi
FINISH
3:22:57
26.22 mi
Rank: #12747 (+24)
25.2M → FINISH
7:52 | 7:44/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:40:36
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time1:42:21
Pace7:49 /mi
📊Positive Split: 1.7% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:25:1623:527:4123:52
7:41
-
10K
6.21 mi11:49:0747:437:4123:51
7:41
0:00
15K
9.32 mi12:13:051:11:417:4223:58
7:43
+0:02
20K
12.43 mi12:36:541:35:307:4223:49
7:40
-0:03
HALF
13.11 mi12:42:001:40:367:415:06
7:29
-0:11
25K
15.53 mi13:00:271:59:037:4018:27
7:37
+0:08
30K
18.64 mi13:24:392:23:157:4224:12
7:48
+0:11
20M
20.00 mi13:35:242:34:007:4310:45
7:55
+0:07
21M
21.00 mi13:43:482:42:247:458:24
8:24
+0:29
35K
21.75 mi13:49:302:48:067:445:42
7:38
-0:46
23M
23.00 mi13:59:202:57:567:459:50
7:52
+0:14
24M
24.00 mi14:06:563:05:327:447:36
7:36
-0:16
40K
24.85 mi14:13:363:12:127:446:40
7:48
+0:12
25.2M
25.20 mi14:16:293:15:057:452:53
8:22
+0:34
FINISH
26.22 mi14:24:213:22:577:457:52
7:44
-0:38

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

7:29 /mi

Average Pace

7:45 /mi

Slowest Pace

8:24 /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

3:11:40

94% of race

Time at Steady Pace

11:17

6% of race

Time at Slower Pace

0:00

0% of race

Average Pace: 7:44 /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 mi11:25:1623:527:4123:52
7:41
#14393
10K
6.21 mi11:49:0747:437:4123:51
7:41
#14433
15K
9.32 mi12:13:051:11:417:4223:58
7:43
#14470
20K
12.43 mi12:36:541:35:307:4223:49
7:40
#14186
HALF
13.11 mi12:42:001:40:367:415:06
7:29
#14088
25K
15.53 mi13:00:271:59:037:4018:27
7:37
#13764
30K
18.64 mi13:24:392:23:157:4224:12
7:48
#13406
20M
20.00 mi13:35:242:34:007:4310:45
7:55
#13286
21M
21.00 mi13:43:482:42:247:458:24
8:24
#13217
35K
21.75 mi13:49:302:48:067:445:42
7:38
#13147
23M
23.00 mi13:59:202:57:567:459:50
7:52
#13042
24M
24.00 mi14:06:563:05:327:447:36
7:36
#12925
40K
24.85 mi14:13:363:12:127:446:40
7:48
#12818
25.2M
25.20 mi14:16:293:15:057:452:53
8:22
#12771
FINISH
26.22 mi14:24:213:22:577:457:52
7:44
#12747
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 mi143934304430414657(Top 51%)4534(Top 36%)4534(Top 254%)
10K6.21 mi3.10 mi14433-404354-504354-5014556(Top 50%)4430(Top 35%)4430(Top 248%)
15K9.32 mi3.11 mi14470-374401-474401-4714657(Top 51%)4534(Top 36%)4534(Top 254%)
20K12.43 mi3.11 mi14186+2844255+1464255+14613431(Top 46%)3901(Top 31%)3901(Top 218%)
HALF13.11 mi0.68 mi14088+984199+564199+5612932(Top 45%)3553(Top 28%)3553(Top 199%)
25K15.53 mi2.42 mi13764+3244032+1674032+16712340(Top 43%)3359(Top 27%)3359(Top 188%)
30K18.64 mi3.11 mi13406+3583877+1553877+15511908(Top 41%)3258(Top 26%)3258(Top 182%)
20M20.00 mi1.36 mi13286+1203834+433834+4312223(Top 42%)3521(Top 28%)3521(Top 197%)
21M21.00 mi1.00 mi13217+693817+173817+1712504(Top 43%)3788(Top 30%)3788(Top 212%)
35K21.75 mi0.75 mi13147+703789+283789+2811780(Top 41%)3424(Top 27%)3424(Top 192%)
23M23.00 mi1.25 mi13042+1053756+333756+3311461(Top 39%)3332(Top 26%)3332(Top 187%)
24M24.00 mi1.00 mi12925+1173705+513705+5110892(Top 38%)3116(Top 25%)3116(Top 174%)
40K24.85 mi0.85 mi12818+1073682+233682+2311047(Top 38%)3283(Top 26%)3283(Top 184%)
25.2M25.20 mi0.35 mi12771+473662+203662+2010816(Top 37%)3257(Top 26%)3257(Top 182%)
FINISH26.22 mi1.02 mi12747+243680-183680-1813149(Top 45%)4461(Top 35%)4461(Top 250%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 51%
×21
+97ft-345ft

Overall

14657

Females

4534

F45-49

4534

5K→10K

3.1 - 6.2 mi

Top 50%
×5
+79ft-138ft

Overall

14556

Females

4430

F45-49

4430

10K→15K

6.2 - 9.3 mi

Top 51%
×3
+67ft-78ft

Overall

14657

Females

4534

F45-49

4534

15K→20K

9.3 - 12.4 mi

Top 46%
×5
+106ft-86ft

Overall

13431

Females

3901

F45-49

3901

20K→HALF

12.4 - 13.1 mi

Top 45%
×2
+19ft-37ft

Overall

12932

Females

3553

F45-49

3553

HALF→25K

13.1 - 15.5 mi

Top 43%
×4
+66ft-88ft

Overall

12340

Females

3359

F45-49

3359

25K→30K

15.5 - 18.6 mi

Top 41%
×9
+181ft-148ft

Overall

11908

Females

3258

F45-49

3258

30K→20M

18.6 - 20.0 mi

Top 42%
×5
+64ft-50ft

Overall

12223

Females

3521

F45-49

3521

20M→21M

20.0 - 21.0 mi

Top 43%
×8
+106ft-24ft

Overall

12504

Females

3788

F45-49

3788

21M→35K

21.0 - 21.8 mi

Top 41%
×7
+17ft-86ft

Overall

11780

Females

3424

F45-49

3424

35K→23M

21.8 - 23.0 mi

Top 39%
×5
+23ft-63ft

Overall

11461

Females

3332

F45-49

3332

23M→24M

23.0 - 24.0 mi

Top 38%
×6
+12ft-82ft

Overall

10892

Females

3116

F45-49

3116

24M→40K

24.0 - 24.9 mi

Top 38%
×1
+6ft-20ft

Overall

11047

Females

3283

F45-49

3283

40K→25.2M

24.9 - 25.2 mi

Top 37%
×1
+13ft-16ft

Overall

10816

Females

3257

F45-49

3257

25.2M→FINISH

25.2 - 26.2 mi

Top 45%
×2
+22ft-21ft

Overall

13149

Females

4461

F45-49

4461

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
2468*
Passed By
745
Net Change
+1646
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14393
5K → 10K200200-40#14393#14433
10K → 15K200200-37#14433#14470
15K → 20K328*44+284#14470#14186
20K → HALF1046+98#14186#14088
HALF → 25K336*12+324#14088#13764
25K → 30K396*38+358#13764#13406
30K → 20M15535+120#13406#13286
20M → 21M12152+69#13286#13217
21M → 35K8313+70#13217#13147
35K → 23M13631+105#13147#13042
23M → 24M13417+117#13042#12925
24M → 40K12114+107#12925#12818
40K → 25.2M6114+47#12818#12771
25.2M → FINISH9369+24#12771#12747
TOTALS2468*745+1646

* 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