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BOSTON MARATHON 2025

Erin Jakubowitch

DE

Bib: 21694 F

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Top 43%
Gender (Female)
#0 / 12228
Top 27%
Masters (Masters Women)
#0 / 6759
Top 13%
Division (F45-49)
#0 / 1813
Top 14%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
469 ft elev
5K· 3.11 mi
7:43/mi
23:57
↑ 97↓ 3451.5%
220 ft elev
10K· 6.21 mi
7:42/mi
47:53
↑ 79↓ 1380.4%
157 ft elev
15K· 9.32 mi
7:35/mi
1:11:28
↑ 67↓ 78
146 ft elev
20K· 12.43 mi
7:44/mi
1:35:29
↑ 106↓ 860.1%
165 ft elev
Half· 13.11 mi
7:39/mi
1:40:42
↑ 19↓ 370.5%
148 ft elev
25K· 15.53 mi
7:51/mi
1:59:44
↑ 66↓ 880.2%
127 ft elev
30K· 18.64 mi
7:57/mi
2:24:27
↑ 181↓ 1480.2%
138 ft elev
20M
8:05/mi
2:35:26
↑ 64↓ 500.2%
148 ft elev
21M
8:49/mi
2:44:15
↑ 106↓ 241.6%
227 ft elev
35K· 21.75 mi
7:51/mi
2:50:07
↑ 17↓ 861.7%
156 ft elev
23M
8:17/mi
3:00:29
↑ 23↓ 630.6%
116 ft elev
24M
8:00/mi
3:08:29
↓ 821.3%
34 ft elev
40K· 24.85 mi
8:10/mi
3:15:28
↓ 200.3%
20 ft elev
25.2M
9:02/mi
3:18:35
↑ 13↓ 160.2%
18 ft elev
Finish· 26.22 mi
8:02/mi
3:26:46
↑ 22↓ 21
17 ft elev
Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:40:42
Pace7:41 /mi
2nd Half
Distance13.11 mi
Time1:46:04
Pace8:05 /mi
📊Positive Split: 5.3% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:19:0023:577:4323:57
7:43
-
10K
6.21 mi11:42:5647:537:4223:56
7:42
-0:01
15K
9.32 mi12:06:311:11:287:4023:35
7:35
-0:07
20K
12.43 mi12:30:321:35:297:4124:01
7:44
+0:09
Half
13.11 mi12:35:451:40:427:415:13
7:39
-0:05
25K
15.53 mi12:54:471:59:447:4219:02
7:51
+0:12
30K
18.64 mi13:19:302:24:277:4524:43
7:57
+0:06
20M
20.00 mi13:30:292:35:267:4610:59
8:05
+0:08
21M
21.00 mi13:39:182:44:157:498:49
8:49
+0:44
35K
21.75 mi13:45:102:50:077:495:52
7:51
-0:58
23M
23.00 mi13:55:323:00:297:5110:22
8:17
+0:26
24M
24.00 mi14:03:323:08:297:518:00
8:00
-0:17
40K
24.85 mi14:10:313:15:287:526:59
8:10
+0:10
25.2M
25.20 mi14:13:383:18:357:533:07
9:02
+0:52
Finish
26.22 mi14:21:493:26:467:548:11
8:02
-1:00

Checkpoints & Pacing

📈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

7:35 /mi

Average Pace

7:54 /mi

Slowest Pace

9:02 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

3:14:50

94% of race

Time at Steady Pace

8:49

4% of race

Time at Slower Pace

3:07

2% 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

Overall Pace Trend

CheckpointDistanceTime of DayTimeAvg PaceSegmentPaceTrendRank
5K
3.11 mi11:19:0023:577:4323:57
7:43
#14055
10K
6.21 mi11:42:5647:537:4223:56
7:42
#13955
15K
9.32 mi12:06:311:11:287:4023:35
7:35
#13473
20K
12.43 mi12:30:321:35:297:4124:01
7:44
#13226
Half
13.11 mi12:35:451:40:427:415:13
7:39
#13206
25K
15.53 mi12:54:471:59:447:4219:02
7:51
#13086
30K
18.64 mi13:19:302:24:277:4524:43
7:57
#12652
20M
20.00 mi13:30:292:35:267:4610:59
8:05
#12491
21M
21.00 mi13:39:182:44:157:498:49
8:49
#12471
35K
21.75 mi13:45:102:50:077:495:52
7:51
#12394
23M
23.00 mi13:55:323:00:297:5110:22
8:17
#12332
24M
24.00 mi14:03:323:08:297:518:00
8:00
#12284
40K
24.85 mi14:10:313:15:287:526:59
8:10
#12216
25.2M
25.20 mi14:13:383:18:357:533:07
9:02
#12203
Finish
26.22 mi14:21:493:26:467:548:11
8:02
#12213
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi140553941394112536(Top 44%)3183(Top 26%)3183(Top 176%)
10K6.21 mi3.10 mi13955+1003911+303911+3013930(Top 49%)3917(Top 32%)3917(Top 216%)
15K9.32 mi3.11 mi13473+4823674+2373674+23712536(Top 44%)3183(Top 26%)3183(Top 176%)
20K12.43 mi3.11 mi13226+2473569+1053569+10512673(Top 45%)3368(Top 28%)3368(Top 186%)
Half13.11 mi0.68 mi13206+203562+73562+713020(Top 46%)3506(Top 29%)3506(Top 193%)
25K15.53 mi2.42 mi13086+1203529+333529+3312763(Top 45%)3534(Top 29%)3534(Top 195%)
30K18.64 mi3.11 mi12652+4343352+1773352+17711080(Top 39%)2831(Top 23%)2831(Top 156%)
20M20.00 mi1.36 mi12491+1613302+503302+5011009(Top 39%)2950(Top 24%)2950(Top 163%)
21M21.00 mi1.00 mi12471+203324-223324-2212423(Top 44%)3816(Top 31%)3816(Top 210%)
35K21.75 mi0.75 mi12394+773310+143310+1411171(Top 39%)3197(Top 26%)3197(Top 176%)
23M23.00 mi1.25 mi12332+623314-43314-411936(Top 42%)3703(Top 30%)3703(Top 204%)
24M24.00 mi1.00 mi12284+483315-13315-111262(Top 40%)3442(Top 28%)3442(Top 190%)
40K24.85 mi0.85 mi12216+683319-43319-411392(Top 40%)3601(Top 29%)3601(Top 199%)
25.2M25.20 mi0.35 mi12203+133326-73326-712052(Top 42%)3993(Top 33%)3993(Top 220%)
Finish26.22 mi1.02 mi12213-103359-333359-3313093(Top 46%)4481(Top 37%)4481(Top 247%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 44%
×21story building
+97ft-345ft

Overall

12536

Females

3183

F45-49

3183

5K→10K

3.1 - 6.2 mi

Top 49%
×5story building
+79ft-138ft

Overall

13930

Females

3917

F45-49

3917

10K→15K

6.2 - 9.3 mi

Top 44%
×3story building
+67ft-78ft

Overall

12536

Females

3183

F45-49

3183

15K→20K

9.3 - 12.4 mi

Top 45%
×5story building
+106ft-86ft

Overall

12673

Females

3368

F45-49

3368

20K→Half

12.4 - 13.1 mi

Top 46%
×2story building
+19ft-37ft

Overall

13020

Females

3506

F45-49

3506

Half→25K

13.1 - 15.5 mi

Top 45%
×4story building
+66ft-88ft

Overall

12763

Females

3534

F45-49

3534

25K→30K

15.5 - 18.6 mi

Top 39%
×9story building
+181ft-148ft

Overall

11080

Females

2831

F45-49

2831

30K→20M

18.6 - 20.0 mi

Top 39%
×5story building
+64ft-50ft

Overall

11009

Females

2950

F45-49

2950

20M→21M

20.0 - 21.0 mi

Top 44%
×8story building
+106ft-24ft

Overall

12423

Females

3816

F45-49

3816

21M→35K

21.0 - 21.8 mi

Top 39%
×7story building
+17ft-86ft

Overall

11171

Females

3197

F45-49

3197

35K→23M

21.8 - 23.0 mi

Top 42%
×5story building
+23ft-63ft

Overall

11936

Females

3703

F45-49

3703

23M→24M

23.0 - 24.0 mi

Top 40%
×6story building
+12ft-82ft

Overall

11262

Females

3442

F45-49

3442

24M→40K

24.0 - 24.9 mi

Top 40%
×1story
+6ft-20ft

Overall

11392

Females

3601

F45-49

3601

40K→25.2M

24.9 - 25.2 mi

Top 42%
×1story
+13ft-16ft

Overall

12052

Females

3993

F45-49

3993

25.2M→Finish

25.2 - 26.2 mi

Top 46%
×2story building
+22ft-21ft

Overall

13093

Females

4481

F45-49

4481

Passing Analysis

Category:
Athletes Passed
2722
Passed By
880
Net Change
+1842
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14055
5K → 10K309209+100#14055#13955
10K → 15K51028+482#13955#13473
15K → 20K32073+247#13473#13226
20K → Half4323+20#13226#13206
Half → 25K21393+120#13206#13086
25K → 30K48147+434#13086#12652
30K → 20M19534+161#12652#12491
20M → 21M11494+20#12491#12471
21M → 35K9518+77#12471#12394
35K → 23M13472+62#12394#12332
23M → 24M9749+48#12332#12284
24M → 40K10638+68#12284#12216
40K → 25.2M4128+13#12216#12203
25.2M → Finish6474-10#12203#12213
TOTALS2722880+1842
📊

Passing Visuals

Category:
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🔄Passing Circle

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🌊Position Flow

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🏃Race Lanes

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Public Race Data

Boston Athletic Association

Boston Athletic Association

Mika Timing

Mika Timing