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BOSTON MARATHON 2026

Rebecca Gelb

Bib: 18350•F

CA

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0:00
0:00
/ mi
Masters
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Overall
#0 / 29021
Top 43%
Gender (Female)
#0 / 12578
Top 28%
Masters (Masters Women)
#0 / 6862
Top 12%
Age Group (F40-44)
#0 / 1737
Top 28%
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
22:58
3.11 mi
Rank: #11884
Start → 5K
22:58 | 7:24/mi
10K
45:56
6.21 mi
Rank: #11910 (-26)
5K → 10K
22:58 | 7:24/mi
15K
1:08:27
9.32 mi
Rank: #11449 (+461)
10K → 15K
22:31 | 7:15/mi
20K
1:31:48
12.43 mi
Rank: #11607 (-158)
15K → 20K
23:21 | 7:31/mi
HALF
1:36:54
13.11 mi
Rank: #11677 (-70)
20K → HALF
5:06 | 7:29/mi
25K
1:55:25
15.53 mi
Rank: #11808 (-131)
HALF → 25K
18:31 | 7:39/mi
30K
2:20:12
18.64 mi
Rank: #12047 (-239)
25K → 30K
24:47 | 7:59/mi
20M
2:32:17
20.00 mi
Rank: #12579 (-532)
30K → 20M
12:05 | 8:54/mi
21M
2:40:24
21.00 mi
Rank: #12468 (+111)
20M → 21M
8:07 | 8:07/mi
35K
2:46:12
21.75 mi
Rank: #12465 (+3)
21M → 35K
5:48 | 7:46/mi
23M
2:56:16
23.00 mi
Rank: #12472 (-7)
35K → 23M
10:04 | 8:03/mi
24M
3:04:18
24.00 mi
Rank: #12502 (-30)
23M → 24M
8:02 | 8:02/mi
40K
3:10:55
24.85 mi
Rank: #12426 (+76)
24M → 40K
6:37 | 7:45/mi
25.2M
3:13:58
25.20 mi
Rank: #12428 (-2)
40K → 25.2M
3:03 | 8:51/mi
FINISH
3:21:48
26.22 mi
Rank: #12411 (+17)
25.2M → FINISH
7:50 | 7:42/mi

Splits & Pacing

Detailed breakdown of your race performance at each timing point

Half Splits

1st HalfFaster
via HALF
Distance13.11 mi
Time1:36:54
Pace7:24 /mi
2nd Half
Distance13.11 mi
Time1:44:54
Pace8:01 /mi
📊Positive Split: 8.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:04:1222:587:2422:58
7:24
-
10K
6.21 mi11:27:1045:567:2422:58
7:24
0:00
15K
9.32 mi11:49:411:08:277:2122:31
7:15
-0:09
20K
12.43 mi12:13:021:31:487:2423:21
7:31
+0:16
HALF
13.11 mi12:18:081:36:547:245:06
7:29
-0:02
25K
15.53 mi12:36:391:55:257:2618:31
7:39
+0:10
30K
18.64 mi13:01:262:20:127:3224:47
7:59
+0:20
20M
20.00 mi13:13:312:32:177:3712:05
8:54
+0:55
21M
21.00 mi13:21:382:40:247:398:07
8:07
-0:47
35K
21.75 mi13:27:262:46:127:395:48
7:46
-0:21
23M
23.00 mi13:37:302:56:167:4010:04
8:03
+0:17
24M
24.00 mi13:45:323:04:187:418:02
8:02
-0:01
40K
24.85 mi13:52:093:10:557:416:37
7:45
-0:17
25.2M
25.20 mi13:55:123:13:587:423:03
8:51
+1:06
FINISH
26.22 mi14:03:023:21:487:437:50
7:42
-1:09

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

7:15 /mi

Average Pace

7:42 /mi

Slowest Pace

8:54 /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

1:13:33

36% of race

Time at Steady Pace

1:26:54

43% of race

Time at Slower Pace

41:21

20% of race

Average Pace: 7:42 /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 mi11:04:1222:587:2422:58
7:24
#11884
10K
6.21 mi11:27:1045:567:2422:58
7:24
#11910
15K
9.32 mi11:49:411:08:277:2122:31
7:15
#11449
20K
12.43 mi12:13:021:31:487:2423:21
7:31
#11607
HALF
13.11 mi12:18:081:36:547:245:06
7:29
#11677
25K
15.53 mi12:36:391:55:257:2618:31
7:39
#11808
30K
18.64 mi13:01:262:20:127:3224:47
7:59
#12047
20M
20.00 mi13:13:312:32:177:3712:05
8:54
#12579
21M
21.00 mi13:21:382:40:247:398:07
8:07
#12468
35K
21.75 mi13:27:262:46:127:395:48
7:46
#12465
23M
23.00 mi13:37:302:56:167:4010:04
8:03
#12472
24M
24.00 mi13:45:323:04:187:418:02
8:02
#12502
40K
24.85 mi13:52:093:10:557:416:37
7:45
#12426
25.2M
25.20 mi13:55:123:13:587:423:03
8:51
#12428
FINISH
26.22 mi14:03:023:21:487:437:50
7:42
#12411
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

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 mi118842848284810565(Top 36%)2253(Top 18%)2253(Top 130%)
10K6.21 mi3.10 mi11910-262889-412889-4112020(Top 41%)2979(Top 24%)2979(Top 172%)
15K9.32 mi3.11 mi11449+4612665+2242665+22410565(Top 36%)2253(Top 18%)2253(Top 130%)
20K12.43 mi3.11 mi11607-1582785-1202785-12012130(Top 42%)3184(Top 25%)3184(Top 183%)
HALF13.11 mi0.68 mi11677-702819-342819-3412920(Top 45%)3541(Top 28%)3541(Top 204%)
25K15.53 mi2.42 mi11808-1312934-1152934-11512540(Top 43%)3458(Top 27%)3458(Top 199%)
30K18.64 mi3.11 mi12047-2393114-1803114-18013330(Top 46%)4026(Top 32%)4026(Top 232%)
20M20.00 mi1.36 mi12579-5323447-3333447-33318447(Top 64%)6997(Top 56%)6997(Top 403%)
21M21.00 mi1.00 mi12468+1113408+393408+3910702(Top 37%)2850(Top 23%)2850(Top 164%)
35K21.75 mi0.75 mi12465+33418-103418-1012725(Top 44%)3925(Top 31%)3925(Top 226%)
23M23.00 mi1.25 mi12472-73444-263444-2612770(Top 44%)4009(Top 32%)4009(Top 231%)
24M24.00 mi1.00 mi12502-303487-433487-4314005(Top 48%)4793(Top 38%)4793(Top 276%)
40K24.85 mi0.85 mi12426+763460+273460+2710643(Top 37%)3083(Top 25%)3083(Top 177%)
25.2M25.20 mi0.35 mi12428-23467-73467-713802(Top 48%)4777(Top 38%)4777(Top 275%)
FINISH26.22 mi1.02 mi12411+173484-173484-1712894(Top 44%)4326(Top 34%)4326(Top 249%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 36%
×21
+97ft-345ft

Overall

10565

Females

2253

F40-44

2253

5K→10K

3.1 - 6.2 mi

Top 41%
×5
+79ft-138ft

Overall

12020

Females

2979

F40-44

2979

10K→15K

6.2 - 9.3 mi

Top 36%
×3
+67ft-78ft

Overall

10565

Females

2253

F40-44

2253

15K→20K

9.3 - 12.4 mi

Top 42%
×5
+106ft-86ft

Overall

12130

Females

3184

F40-44

3184

20K→HALF

12.4 - 13.1 mi

Top 45%
×2
+19ft-37ft

Overall

12920

Females

3541

F40-44

3541

HALF→25K

13.1 - 15.5 mi

Top 43%
×4
+66ft-88ft

Overall

12540

Females

3458

F40-44

3458

25K→30K

15.5 - 18.6 mi

Top 46%
×9
+181ft-148ft

Overall

13330

Females

4026

F40-44

4026

30K→20M

18.6 - 20.0 mi

Top 64%
×5
+64ft-50ft

Overall

18447

Females

6997

F40-44

6997

20M→21M

20.0 - 21.0 mi

Top 37%
×8
+106ft-24ft

Overall

10702

Females

2850

F40-44

2850

21M→35K

21.0 - 21.8 mi

Top 44%
×7
+17ft-86ft

Overall

12725

Females

3925

F40-44

3925

35K→23M

21.8 - 23.0 mi

Top 44%
×5
+23ft-63ft

Overall

12770

Females

4009

F40-44

4009

23M→24M

23.0 - 24.0 mi

Top 48%
×6
+12ft-82ft

Overall

14005

Females

4793

F40-44

4793

24M→40K

24.0 - 24.9 mi

Top 37%
×1
+6ft-20ft

Overall

10643

Females

3083

F40-44

3083

40K→25.2M

24.9 - 25.2 mi

Top 48%
×1
+13ft-16ft

Overall

13802

Females

4777

F40-44

4777

25.2M→FINISH

25.2 - 26.2 mi

Top 44%
×2
+22ft-21ft

Overall

12894

Females

4326

F40-44

4326

Passing

Athletes you passed and who passed you throughout the race

Passing Analysis

Category:
Athletes Passed
1613*
Passed By
1521
Net Change
-527
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#11884
5K → 10K200200-26#11884#11910
10K → 15K495*34+461#11910#11449
15K → 20K105200-158#11449#11607
20K → HALF1282-70#11607#11677
HALF → 25K92200-131#11677#11808
25K → 30K117200-239#11808#12047
30K → 20M19200-532#12047#12579
20M → 21M14938+111#12579#12468
21M → 35K4845+3#12468#12465
35K → 23M8794-7#12465#12472
23M → 24M6999-30#12472#12502
24M → 40K11135+76#12502#12426
40K → 25.2M3032-2#12426#12428
25.2M → FINISH7962+17#12428#12411
TOTALS1613*1521-527

* 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