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BOSTON MARATHON 2025

Jessica Belen-Rivera

Bib: 17631•F

TX

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Top 39%
Masters (Masters Women)
#0 / 6759
Top 24%
Division (F45-49)
#0 / 1813
Top 29%
Race Day Weather
50°/40°F
broken clouds

⏱️ Race Timeline

Course Elevation
7–469 ft
≈
×2stacked redwood trees
•▲ 890 ft climb · ▼ 1342 ft descent
Ribbon color based on
FasterSteadySlower· vs. your average pace
Start
0:00
Race begins
5K· 3.11 mi
7:46/mi
24:08
↑ 97↓ 3451.5%
10K· 6.21 mi
7:49/mi
48:24
↑ 79↓ 1380.4%
15K· 9.32 mi
7:53/mi
1:12:52
↑ 67↓ 78
20K· 12.43 mi
7:57/mi
1:37:35
↑ 106↓ 860.1%
Half· 13.11 mi
7:50/mi
1:42:56
↑ 19↓ 370.5%
25K· 15.53 mi
7:59/mi
2:02:17
↑ 66↓ 880.2%
30K· 18.64 mi
8:20/mi
2:28:10
↑ 181↓ 1480.2%
20M
8:22/mi
2:39:32
↑ 64↓ 500.2%
21M
8:56/mi
2:48:28
↑ 106↓ 241.6%
35K· 21.75 mi
8:19/mi
2:54:41
↑ 17↓ 861.7%
23M
8:39/mi
3:05:31
↑ 23↓ 630.6%
24M
10:21/mi
3:15:52
↓ 821.3%
40K· 24.85 mi
8:50/mi
3:23:25
↓ 200.3%
25.2M
9:49/mi
3:26:48
↑ 13↓ 160.2%
Finish· 26.22 mi
8:42/mi
3:35:40
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:42:56
Pace7:51 /mi
2nd Half
Distance13.11 mi
Time1:52:44
Pace8:36 /mi
📊Positive Split: 9.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:14:1824:087:4624:08
7:46
-
10K
6.21 mi11:38:3448:247:4724:16
7:49
+0:03
15K
9.32 mi12:03:021:12:527:4924:28
7:53
+0:04
20K
12.43 mi12:27:451:37:357:5124:43
7:57
+0:04
Half
13.11 mi12:33:061:42:567:515:21
7:50
-0:07
25K
15.53 mi12:52:272:02:177:5219:21
7:59
+0:09
30K
18.64 mi13:18:202:28:107:5725:53
8:20
+0:21
20M
20.00 mi13:29:422:39:327:5911:22
8:22
+0:02
21M
21.00 mi13:38:382:48:288:018:56
8:56
+0:34
35K
21.75 mi13:44:512:54:418:026:13
8:19
-0:37
23M
23.00 mi13:55:413:05:318:0410:50
8:39
+0:20
24M
24.00 mi14:06:023:15:528:1010:21
10:21
+1:42
40K
24.85 mi14:13:353:23:258:117:33
8:50
-1:31
25.2M
25.20 mi14:16:583:26:488:123:23
9:49
+0:59
Finish
26.22 mi14:25:503:35:408:148:52
8:42
-1:07

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

7:46 /mi

Average Pace

8:14 /mi

Slowest Pace

10:21 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

1:42:56

48% of race

Time at Steady Pace

1:13:39

34% of race

Time at Slower Pace

39:05

18% of race

Average Pace: 8:14 /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 mi11:14:1824:087:4624:08
7:46
#14530
10K
6.21 mi11:38:3448:247:4724:16
7:49
#14693
15K
9.32 mi12:03:021:12:527:4924:28
7:53
#14797
20K
12.43 mi12:27:451:37:357:5124:43
7:57
#14686
Half
13.11 mi12:33:061:42:567:515:21
7:50
#14687
25K
15.53 mi12:52:272:02:177:5219:21
7:59
#14488
30K
18.64 mi13:18:202:28:107:5725:53
8:20
#14273
20M
20.00 mi13:29:422:39:327:5911:22
8:22
#14134
21M
21.00 mi13:38:382:48:288:018:56
8:56
#14018
35K
21.75 mi13:44:512:54:418:026:13
8:19
#14038
23M
23.00 mi13:55:413:05:318:0410:50
8:39
#14073
24M
24.00 mi14:06:023:15:528:1010:21
10:21
#14620
40K
24.85 mi14:13:353:23:258:117:33
8:50
#14622
25.2M
25.20 mi14:16:583:26:488:123:23
9:49
#14639
Finish
26.22 mi14:25:503:35:408:148:52
8:42
#14741
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi145304236423615063(Top 53%)4615(Top 38%)4615(Top 255%)
10K6.21 mi3.10 mi14693-1634364-1284364-12814937(Top 53%)4496(Top 37%)4496(Top 248%)
15K9.32 mi3.11 mi14797-1044431-674431-6715063(Top 53%)4615(Top 38%)4615(Top 255%)
20K12.43 mi3.11 mi14686+1114399+324399+3214593(Top 51%)4426(Top 36%)4426(Top 244%)
Half13.11 mi0.68 mi14687-14401-24401-214680(Top 52%)4447(Top 36%)4447(Top 245%)
25K15.53 mi2.42 mi14488+1994328+734328+7313762(Top 48%)4088(Top 33%)4088(Top 225%)
30K18.64 mi3.11 mi14273+2154265+634265+6313704(Top 48%)4204(Top 34%)4204(Top 232%)
20M20.00 mi1.36 mi14134+1394210+554210+5512962(Top 46%)3960(Top 32%)3960(Top 218%)
21M21.00 mi1.00 mi14018+1164177+334177+3313154(Top 46%)4199(Top 34%)4199(Top 232%)
35K21.75 mi0.75 mi14038-204206-294206-2914338(Top 50%)4869(Top 40%)4869(Top 269%)
23M23.00 mi1.25 mi14073-354265-594265-5914275(Top 50%)4947(Top 40%)4947(Top 273%)
24M24.00 mi1.00 mi14620-5474583-3184583-31822399(Top 79%)9335(Top 76%)9335(Top 515%)
40K24.85 mi0.85 mi14622-24611-284611-2815364(Top 54%)5721(Top 47%)5721(Top 316%)
25.2M25.20 mi0.35 mi14639-174637-264637-2616170(Top 57%)6155(Top 50%)6155(Top 339%)
Finish26.22 mi1.02 mi14741-1024720-834720-8317478(Top 62%)6800(Top 56%)6800(Top 375%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 53%
×21story building
+97ft-345ft

Overall

15063

Females

4615

F45-49

4615

5K→10K

3.1 - 6.2 mi

Top 53%
×5story building
+79ft-138ft

Overall

14937

Females

4496

F45-49

4496

10K→15K

6.2 - 9.3 mi

Top 53%
×3story building
+67ft-78ft

Overall

15063

Females

4615

F45-49

4615

15K→20K

9.3 - 12.4 mi

Top 51%
×5story building
+106ft-86ft

Overall

14593

Females

4426

F45-49

4426

20K→Half

12.4 - 13.1 mi

Top 52%
×2story building
+19ft-37ft

Overall

14680

Females

4447

F45-49

4447

Half→25K

13.1 - 15.5 mi

Top 48%
×4story building
+66ft-88ft

Overall

13762

Females

4088

F45-49

4088

25K→30K

15.5 - 18.6 mi

Top 48%
×9story building
+181ft-148ft

Overall

13704

Females

4204

F45-49

4204

30K→20M

18.6 - 20.0 mi

Top 46%
×5story building
+64ft-50ft

Overall

12962

Females

3960

F45-49

3960

20M→21M

20.0 - 21.0 mi

Top 46%
×8story building
+106ft-24ft

Overall

13154

Females

4199

F45-49

4199

21M→35K

21.0 - 21.8 mi

Top 50%
×7story building
+17ft-86ft

Overall

14338

Females

4869

F45-49

4869

35K→23M

21.8 - 23.0 mi

Top 50%
×5story building
+23ft-63ft

Overall

14275

Females

4947

F45-49

4947

23M→24M

23.0 - 24.0 mi

Top 79%
×6story building
+12ft-82ft

Overall

22399

Females

9335

F45-49

9335

24M→40K

24.0 - 24.9 mi

Top 54%
×1story
+6ft-20ft

Overall

15364

Females

5721

F45-49

5721

40K→25.2M

24.9 - 25.2 mi

Top 57%
×1story
+13ft-16ft

Overall

16170

Females

6155

F45-49

6155

25.2M→Finish

25.2 - 26.2 mi

Top 62%
×2story building
+22ft-21ft

Overall

17478

Females

6800

F45-49

6800

Passing Analysis

Category:
Athletes Passed
1950
Passed By
2161
Net Change
-211
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#14530
5K → 10K225388-163#14530#14693
10K → 15K153257-104#14693#14797
15K → 20K256145+111#14797#14686
20K → Half3031-1#14686#14687
Half → 25K27172+199#14687#14488
25K → 30K352137+215#14488#14273
30K → 20M18041+139#14273#14134
20M → 21M16852+116#14134#14018
21M → 35K5979-20#14018#14038
35K → 23M103138-35#14038#14073
23M → 24M8555-547#14073#14620
24M → 40K7274-2#14620#14622
40K → 25.2M3047-17#14622#14639
25.2M → Finish43145-102#14639#14741
TOTALS19502161-211
📊

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