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BOSTON MARATHON 2026

Erin Jeffers

Bib: 18511•F

TX

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 36%
Gender (Female)
#0 / 12578
Top 19%
Masters (Masters Women)
#0 / 6862
Top 7%
Age Group (F40-44)
#0 / 1737
Top 15%
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
23:40
3.11 mi
Rank: #13806
Start → 5K
23:40 | 7:38/mi
10K
46:33
6.21 mi
Rank: #12766 (+1040)
5K → 10K
22:53 | 7:22/mi
15K
1:09:13
9.32 mi
Rank: #12158 (+608)
10K → 15K
22:40 | 7:18/mi
20K
1:32:04
12.43 mi
Rank: #11802 (+356)
15K → 20K
22:51 | 7:22/mi
HALF
1:36:56
13.11 mi
Rank: #11711 (+91)
20K → HALF
4:52 | 7:09/mi
25K
1:54:56
15.53 mi
Rank: #11551 (+160)
HALF → 25K
18:00 | 7:26/mi
30K
2:18:31
18.64 mi
Rank: #11307 (+244)
25K → 30K
23:35 | 7:36/mi
20M
2:28:48
20.00 mi
Rank: #11149 (+158)
30K → 20M
10:17 | 7:35/mi
21M
2:36:59
21.00 mi
Rank: #11103 (+46)
20M → 21M
8:11 | 8:11/mi
35K
2:42:31
21.75 mi
Rank: #11033 (+70)
21M → 35K
5:32 | 7:24/mi
23M
2:51:59
23.00 mi
Rank: #10871 (+162)
35K → 23M
9:28 | 7:34/mi
24M
2:59:22
24.00 mi
Rank: #10744 (+127)
23M → 24M
7:23 | 7:23/mi
40K
3:05:37
24.85 mi
Rank: #10597 (+147)
24M → 40K
6:15 | 7:19/mi
25.2M
3:08:25
25.20 mi
Rank: #10572 (+25)
40K → 25.2M
2:48 | 8:08/mi
FINISH
3:15:43
26.22 mi
Rank: #10461 (+111)
25.2M → FINISH
7:18 | 7:10/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:36:56
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:38:47
Pace7:33 /mi
📊Positive Split: 1.9% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:05:3923:407:3823:40
7:38
-
10K
6.21 mi11:28:3246:337:3022:53
7:22
-0:16
15K
9.32 mi11:51:121:09:137:2622:40
7:18
-0:04
20K
12.43 mi12:14:031:32:047:2522:51
7:22
+0:04
HALF
13.11 mi12:18:551:36:567:244:52
7:09
-0:13
25K
15.53 mi12:36:551:54:567:2418:00
7:26
+0:17
30K
18.64 mi13:00:302:18:317:2623:35
7:36
+0:10
20M
20.00 mi13:10:472:28:487:2710:17
7:35
-0:01
21M
21.00 mi13:18:582:36:597:298:11
8:11
+0:36
35K
21.75 mi13:24:302:42:317:295:32
7:24
-0:47
23M
23.00 mi13:33:582:51:597:299:28
7:34
+0:10
24M
24.00 mi13:41:212:59:227:297:23
7:23
-0:11
40K
24.85 mi13:47:363:05:377:296:15
7:19
-0:04
25.2M
25.20 mi13:50:243:08:257:292:48
8:08
+0:49
FINISH
26.22 mi13:57:423:15:437:297:18
7:10
-0:58

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

7:09 /mi

Average Pace

7:28 /mi

Slowest Pace

8:11 /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

3:04:44

94% of race

Time at Steady Pace

10:59

6% 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 mi11:05:3923:407:3823:40
7:38
#13806
10K
6.21 mi11:28:3246:337:3022:53
7:22
#12766
15K
9.32 mi11:51:121:09:137:2622:40
7:18
#12158
20K
12.43 mi12:14:031:32:047:2522:51
7:22
#11802
HALF
13.11 mi12:18:551:36:567:244:52
7:09
#11711
25K
15.53 mi12:36:551:54:567:2418:00
7:26
#11551
30K
18.64 mi13:00:302:18:317:2623:35
7:36
#11307
20M
20.00 mi13:10:472:28:487:2710:17
7:35
#11149
21M
21.00 mi13:18:582:36:597:298:11
8:11
#11103
35K
21.75 mi13:24:302:42:317:295:32
7:24
#11033
23M
23.00 mi13:33:582:51:597:299:28
7:34
#10871
24M
24.00 mi13:41:212:59:227:297:23
7:23
#10744
40K
24.85 mi13:47:363:05:377:296:15
7:19
#10597
25.2M
25.20 mi13:50:243:08:257:292:48
8:08
#10572
FINISH
26.22 mi13:57:423:15:437:297:18
7:10
#10461
Faster pace
Steady pace
Slower pace

Rankings

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

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF40-44Seg. OverallSeg. FemalesSeg. F40-44
5K3.11 mi3.11 mi138063959395911024(Top 38%)2489(Top 20%)2489(Top 143%)
10K6.21 mi3.10 mi12766+10403372+5873372+58711771(Top 41%)2839(Top 23%)2839(Top 163%)
15K9.32 mi3.11 mi12158+6083053+3193053+31911024(Top 38%)2489(Top 20%)2489(Top 143%)
20K12.43 mi3.11 mi11802+3562885+1682885+16810701(Top 37%)2407(Top 19%)2407(Top 139%)
HALF13.11 mi0.68 mi11711+912840+452840+459867(Top 34%)1937(Top 15%)1937(Top 112%)
25K15.53 mi2.42 mi11551+1602786+542786+5410787(Top 37%)2528(Top 20%)2528(Top 146%)
30K18.64 mi3.11 mi11307+2442693+932693+9310368(Top 36%)2452(Top 19%)2452(Top 141%)
20M20.00 mi1.36 mi11149+1582647+462647+469637(Top 33%)2217(Top 18%)2217(Top 128%)
21M21.00 mi1.00 mi11103+462649-22649-211106(Top 38%)3034(Top 24%)3034(Top 175%)
35K21.75 mi0.75 mi11033+702629+202629+2010097(Top 35%)2536(Top 20%)2536(Top 146%)
23M23.00 mi1.25 mi10871+1622571+582571+589360(Top 32%)2259(Top 18%)2259(Top 130%)
24M24.00 mi1.00 mi10744+1272532+392532+399248(Top 32%)2301(Top 18%)2301(Top 132%)
40K24.85 mi0.85 mi10597+1472481+512481+517562(Top 26%)1622(Top 13%)1622(Top 93%)
25.2M25.20 mi0.35 mi10572+252478+32478+39157(Top 32%)2420(Top 19%)2420(Top 139%)
FINISH26.22 mi1.02 mi10461+1112449+292449+298880(Top 31%)2328(Top 19%)2328(Top 134%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 38%
×21
+97ft-345ft

Overall

11024

Females

2489

F40-44

2489

5K→10K

3.1 - 6.2 mi

Top 41%
×5
+79ft-138ft

Overall

11771

Females

2839

F40-44

2839

10K→15K

6.2 - 9.3 mi

Top 38%
×3
+67ft-78ft

Overall

11024

Females

2489

F40-44

2489

15K→20K

9.3 - 12.4 mi

Top 37%
×5
+106ft-86ft

Overall

10701

Females

2407

F40-44

2407

20K→HALF

12.4 - 13.1 mi

Top 34%
×2
+19ft-37ft

Overall

9867

Females

1937

F40-44

1937

HALF→25K

13.1 - 15.5 mi

Top 37%
×4
+66ft-88ft

Overall

10787

Females

2528

F40-44

2528

25K→30K

15.5 - 18.6 mi

Top 36%
×9
+181ft-148ft

Overall

10368

Females

2452

F40-44

2452

30K→20M

18.6 - 20.0 mi

Top 33%
×5
+64ft-50ft

Overall

9637

Females

2217

F40-44

2217

20M→21M

20.0 - 21.0 mi

Top 38%
×8
+106ft-24ft

Overall

11106

Females

3034

F40-44

3034

21M→35K

21.0 - 21.8 mi

Top 35%
×7
+17ft-86ft

Overall

10097

Females

2536

F40-44

2536

35K→23M

21.8 - 23.0 mi

Top 32%
×5
+23ft-63ft

Overall

9360

Females

2259

F40-44

2259

23M→24M

23.0 - 24.0 mi

Top 32%
×6
+12ft-82ft

Overall

9248

Females

2301

F40-44

2301

24M→40K

24.0 - 24.9 mi

Top 26%
×1
+6ft-20ft

Overall

7562

Females

1622

F40-44

1622

40K→25.2M

24.9 - 25.2 mi

Top 32%
×1
+13ft-16ft

Overall

9157

Females

2420

F40-44

2420

25.2M→FINISH

25.2 - 26.2 mi

Top 31%
×2
+22ft-21ft

Overall

8880

Females

2328

F40-44

2328

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
3751*
Passed By
406
Net Change
+3345
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#13806
5K → 10K1081*41+1040#13806#12766
10K → 15K625*17+608#12766#12158
15K → 20K377*21+356#12158#11802
20K → HALF943+91#11802#11711
HALF → 25K203*43+160#11711#11551
25K → 30K315*71+244#11551#11307
30K → 20M18224+158#11307#11149
20M → 21M12377+46#11149#11103
21M → 35K8717+70#11103#11033
35K → 23M18927+162#11033#10871
23M → 24M14821+127#10871#10744
24M → 40K1525+147#10744#10597
40K → 25.2M4419+25#10597#10572
25.2M → FINISH13120+111#10572#10461
TOTALS3751*406+3345

* 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