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BOSTON MARATHON 2026

Lauren Spencer

Bib: 14718•F

MA

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0:00
0:00
/ mi
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Overall
#0 / 29021
Top 40%
Gender (Female)
#0 / 12578
Top 24%
Age Group (F18-39)
#0 / 5716
Top 41%
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
22:04
3.11 mi
Rank: #9387
Start → 5K
22:04 | 7:07/mi
10K
44:01
6.21 mi
Rank: #9228 (+159)
5K → 10K
21:57 | 7:04/mi
15K
1:06:23
9.32 mi
Rank: #9462 (-234)
10K → 15K
22:22 | 7:12/mi
20K
1:29:16
12.43 mi
Rank: #9741 (-279)
15K → 20K
22:53 | 7:22/mi
HALF
1:34:14
13.11 mi
Rank: #9814 (-73)
20K → HALF
4:58 | 7:18/mi
25K
1:52:25
15.53 mi
Rank: #10040 (-226)
HALF → 25K
18:11 | 7:30/mi
30K
2:16:52
18.64 mi
Rank: #10445 (-405)
25K → 30K
24:27 | 7:53/mi
20M
2:27:59
20.00 mi
Rank: #10748 (-303)
30K → 20M
11:07 | 8:12/mi
21M
2:36:43
21.00 mi
Rank: #10985 (-237)
20M → 21M
8:44 | 8:44/mi
35K
2:42:50
21.75 mi
Rank: #11154 (-169)
21M → 35K
6:07 | 8:11/mi
23M
2:53:09
23.00 mi
Rank: #11299 (-145)
35K → 23M
10:19 | 8:15/mi
24M
3:01:17
24.00 mi
Rank: #11434 (-135)
23M → 24M
8:08 | 8:08/mi
40K
3:08:20
24.85 mi
Rank: #11516 (-82)
24M → 40K
7:03 | 8:15/mi
25.2M
3:11:16
25.20 mi
Rank: #11508 (+8)
40K → 25.2M
2:56 | 8:31/mi
FINISH
3:18:56
26.22 mi
Rank: #11503 (+5)
25.2M → FINISH
7:40 | 7:32/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:34:14
Pace7:12 /mi
2nd Half
Distance13.11 mi
Time1:44:42
Pace8:00 /mi
📊Positive Split: 11.1% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi10:52:1822:047:0722:04
7:07
-
10K
6.21 mi11:14:1544:017:0621:57
7:04
-0:03
15K
9.32 mi11:36:371:06:237:0822:22
7:12
+0:08
20K
12.43 mi11:59:301:29:167:1122:53
7:22
+0:10
HALF
13.11 mi12:04:281:34:147:124:58
7:18
-0:04
25K
15.53 mi12:22:391:52:257:1518:11
7:30
+0:12
30K
18.64 mi12:47:062:16:527:2124:27
7:53
+0:23
20M
20.00 mi12:58:132:27:597:2411:07
8:12
+0:19
21M
21.00 mi13:06:572:36:437:288:44
8:44
+0:32
35K
21.75 mi13:13:042:42:507:306:07
8:11
-0:33
23M
23.00 mi13:23:232:53:097:3210:19
8:15
+0:04
24M
24.00 mi13:31:313:01:177:348:08
8:08
-0:07
40K
24.85 mi13:38:343:08:207:357:03
8:15
+0:07
25.2M
25.20 mi13:41:303:11:167:362:56
8:31
+0:16
FINISH
26.22 mi13:49:103:18:567:367:40
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

7:04 /mi

Average Pace

7:36 /mi

Slowest Pace

8:44 /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

2:00:05

60% of race

Time at Steady Pace

32:35

16% of race

Time at Slower Pace

46:16

23% of race

Average Pace: 7:35 /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 mi10:52:1822:047:0722:04
7:07
#9387
10K
6.21 mi11:14:1544:017:0621:57
7:04
#9228
15K
9.32 mi11:36:371:06:237:0822:22
7:12
#9462
20K
12.43 mi11:59:301:29:167:1122:53
7:22
#9741
HALF
13.11 mi12:04:281:34:147:124:58
7:18
#9814
25K
15.53 mi12:22:391:52:257:1518:11
7:30
#10040
30K
18.64 mi12:47:062:16:527:2124:27
7:53
#10445
20M
20.00 mi12:58:132:27:597:2411:07
8:12
#10748
21M
21.00 mi13:06:572:36:437:288:44
8:44
#10985
35K
21.75 mi13:13:042:42:507:306:07
8:11
#11154
23M
23.00 mi13:23:232:53:097:3210:19
8:15
#11299
24M
24.00 mi13:31:313:01:177:348:08
8:08
#11434
40K
24.85 mi13:38:343:08:207:357:03
8:15
#11516
25.2M
25.20 mi13:41:303:11:167:362:56
8:31
#11508
FINISH
26.22 mi13:49:103:18:567:367:40
7:32
#11503
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 mi93871598159810146(Top 35%)2027(Top 16%)2027(Top 35%)
10K6.21 mi3.10 mi9228+1591525+731525+739191(Top 32%)1547(Top 12%)1547(Top 27%)
15K9.32 mi3.11 mi9462-2341648-1231648-12310146(Top 35%)2027(Top 16%)2027(Top 35%)
20K12.43 mi3.11 mi9741-2791816-1681816-16810832(Top 37%)2483(Top 20%)2483(Top 43%)
HALF13.11 mi0.68 mi9814-731850-341850-3411155(Top 38%)2568(Top 20%)2568(Top 45%)
25K15.53 mi2.42 mi10040-2262003-1532003-15311412(Top 39%)2852(Top 23%)2852(Top 50%)
30K18.64 mi3.11 mi10445-4052266-2632266-26312508(Top 43%)3577(Top 28%)3577(Top 63%)
20M20.00 mi1.36 mi10748-3032449-1832449-18314155(Top 49%)4566(Top 36%)4566(Top 80%)
21M21.00 mi1.00 mi10985-2372596-1472596-14714577(Top 50%)4881(Top 39%)4881(Top 85%)
35K21.75 mi0.75 mi11154-1692692-962692-9615644(Top 54%)5536(Top 44%)5536(Top 97%)
23M23.00 mi1.25 mi11299-1452790-982790-9814085(Top 49%)4743(Top 38%)4743(Top 83%)
24M24.00 mi1.00 mi11434-1352877-872877-8714656(Top 51%)5140(Top 41%)5140(Top 90%)
40K24.85 mi0.85 mi11516-822964-872964-8714086(Top 49%)4913(Top 39%)4913(Top 86%)
25.2M25.20 mi0.35 mi11508+82978-142978-1411714(Top 40%)3701(Top 29%)3701(Top 65%)
FINISH26.22 mi1.02 mi11503+53001-233001-2311633(Top 40%)3667(Top 29%)3667(Top 64%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 35%
×21
+97ft-345ft

Overall

10146

Females

2027

F18-39

2027

5K→10K

3.1 - 6.2 mi

Top 32%
×5
+79ft-138ft

Overall

9191

Females

1547

F18-39

1547

10K→15K

6.2 - 9.3 mi

Top 35%
×3
+67ft-78ft

Overall

10146

Females

2027

F18-39

2027

15K→20K

9.3 - 12.4 mi

Top 37%
×5
+106ft-86ft

Overall

10832

Females

2483

F18-39

2483

20K→HALF

12.4 - 13.1 mi

Top 38%
×2
+19ft-37ft

Overall

11155

Females

2568

F18-39

2568

HALF→25K

13.1 - 15.5 mi

Top 39%
×4
+66ft-88ft

Overall

11412

Females

2852

F18-39

2852

25K→30K

15.5 - 18.6 mi

Top 43%
×9
+181ft-148ft

Overall

12508

Females

3577

F18-39

3577

30K→20M

18.6 - 20.0 mi

Top 49%
×5
+64ft-50ft

Overall

14155

Females

4566

F18-39

4566

20M→21M

20.0 - 21.0 mi

Top 50%
×8
+106ft-24ft

Overall

14577

Females

4881

F18-39

4881

21M→35K

21.0 - 21.8 mi

Top 54%
×7
+17ft-86ft

Overall

15644

Females

5536

F18-39

5536

35K→23M

21.8 - 23.0 mi

Top 49%
×5
+23ft-63ft

Overall

14085

Females

4743

F18-39

4743

23M→24M

23.0 - 24.0 mi

Top 51%
×6
+12ft-82ft

Overall

14656

Females

5140

F18-39

5140

24M→40K

24.0 - 24.9 mi

Top 49%
×1
+6ft-20ft

Overall

14086

Females

4913

F18-39

4913

40K→25.2M

24.9 - 25.2 mi

Top 40%
×1
+13ft-16ft

Overall

11714

Females

3701

F18-39

3701

25.2M→FINISH

25.2 - 26.2 mi

Top 40%
×2
+22ft-21ft

Overall

11633

Females

3667

F18-39

3667

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1036*
Passed By
2264
Net Change
-2116
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#9387
5K → 10K317*158+159#9387#9228
10K → 15K71200-234#9228#9462
15K → 20K78200-279#9462#9741
20K → HALF1285-73#9741#9814
HALF → 25K58200-226#9814#10040
25K → 30K105200-405#10040#10445
30K → 20M32200-303#10445#10748
20M → 21M48200-237#10748#10985
21M → 35K20189-169#10985#11154
35K → 23M67200-145#11154#11299
23M → 24M53188-135#11299#11434
24M → 40K52134-82#11434#11516
40K → 25.2M4133+8#11516#11508
25.2M → FINISH8277+5#11508#11503
TOTALS1036*2264-2116

* 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