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BOSTON MARATHON 2025

Jennifer Pyun

Bib: 27549•F

NY

0:00
0:00
/ mi
Masters
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Masters (Masters Women)
#0 / 6759
Division (F45-49)
#0 / 1813
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
11:44/mi
36:26
↑ 97↓ 3451.5%
10K· 6.21 mi
11:57/mi
1:13:33
↑ 79↓ 1380.4%
15K· 9.32 mi
12:00/mi
1:50:51
↑ 67↓ 78
20K· 12.43 mi
12:15/mi
2:28:54
↑ 106↓ 860.1%
Half· 13.11 mi
11:16/mi
2:36:35
↑ 19↓ 370.5%
25K· 15.53 mi
12:24/mi
3:06:39
↑ 66↓ 880.2%
30K· 18.64 mi
12:35/mi
3:45:44
↑ 181↓ 1480.2%
20M
12:53/mi
4:03:15
↑ 64↓ 500.2%
21M
13:35/mi
4:16:50
↑ 106↓ 241.6%
35K· 21.75 mi
12:04/mi
4:25:52
↑ 17↓ 861.7%
23M
12:10/mi
4:41:06
↑ 23↓ 630.6%
24M
12:05/mi
4:53:11
↓ 821.3%
40K· 24.85 mi
12:05/mi
5:03:31
↓ 200.3%
25.2M
13:23/mi
5:08:08
↑ 13↓ 160.2%
Finish· 26.22 mi
11:49/mi
5:20:11
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time2:36:35
Pace11:57 /mi
2nd Half
Distance13.11 mi
Time2:43:36
Pace12:29 /mi
📊Positive Split: 4.5% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:52:2936:2611:4436:26
11:44
-
10K
6.21 mi12:29:361:13:3311:5037:07
11:57
+0:13
15K
9.32 mi13:06:541:50:5111:5437:18
12:00
+0:03
20K
12.43 mi13:44:572:28:5411:5938:03
12:15
+0:15
Half
13.11 mi13:52:382:36:3511:577:41
11:16
-0:59
25K
15.53 mi14:22:423:06:3912:0130:04
12:24
+1:08
30K
18.64 mi15:01:473:45:4412:0739:05
12:35
+0:11
20M
20.00 mi15:19:184:03:1512:1017:31
12:53
+0:18
21M
21.00 mi15:32:534:16:5012:1413:35
13:35
+0:42
35K
21.75 mi15:41:554:25:5212:139:02
12:04
-1:31
23M
23.00 mi15:57:094:41:0612:1315:14
12:10
+0:06
24M
24.00 mi16:09:144:53:1112:1312:05
12:05
-0:05
40K
24.85 mi16:19:345:03:3112:1310:20
12:05
0:00
25.2M
25.20 mi16:24:115:08:0812:144:37
13:23
+1:18
Finish
26.22 mi16:36:145:20:1112:1312:03
11:49
-1:34

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

11:16 /mi

Average Pace

12:13 /mi

Slowest Pace

13:35 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

44:07

14% of race

Time at Steady Pace

2:51:12

53% of race

Time at Slower Pace

1:44:52

33% of race

Average Pace: 12:13 /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 mi11:52:2936:2611:4436:26
11:44
#28143
10K
6.21 mi12:29:361:13:3311:5037:07
11:57
#28055
15K
9.32 mi13:06:541:50:5111:5437:18
12:00
#27942
20K
12.43 mi13:44:572:28:5411:5938:03
12:15
#27803
Half
13.11 mi13:52:382:36:3511:577:41
11:16
#27764
25K
15.53 mi14:22:423:06:3912:0130:04
12:24
#27607
30K
18.64 mi15:01:473:45:4412:0739:05
12:35
#27404
20M
20.00 mi15:19:184:03:1512:1017:31
12:53
#27337
21M
21.00 mi15:32:534:16:5012:1413:35
13:35
#27293
35K
21.75 mi15:41:554:25:5212:139:02
12:04
#27247
23M
23.00 mi15:57:094:41:0612:1315:14
12:10
#27171
24M
24.00 mi16:09:144:53:1112:1312:05
12:05
#27139
40K
24.85 mi16:19:345:03:3112:1310:20
12:05
#27089
25.2M
25.20 mi16:24:115:08:0812:144:37
13:23
#27073
Finish
26.22 mi16:36:145:20:1112:1312:03
11:49
#27071
Faster pace
Steady pace
Slower pace
Est.Checkpoint not recorded (estimated)
~Segment time uses estimated prior

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF45-49Seg. OverallSeg. FemalesSeg. F45-49
5K3.11 mi3.11 mi28143120591205927630(Top 97%)11766(Top 96%)11766(Top 649%)
10K6.21 mi3.10 mi28055+8812002+5712002+5727905(Top 98%)11911(Top 97%)11911(Top 657%)
15K9.32 mi3.11 mi27942+11311934+6811934+6827630(Top 97%)11766(Top 96%)11766(Top 649%)
20K12.43 mi3.11 mi27803+13911853+8111853+8127305(Top 96%)11583(Top 95%)11583(Top 639%)
Half13.11 mi0.68 mi27764+3911834+1911834+1926826(Top 94%)11316(Top 93%)11316(Top 624%)
25K15.53 mi2.42 mi27607+15711739+9511739+9526843(Top 95%)11343(Top 93%)11343(Top 626%)
30K18.64 mi3.11 mi27404+20311645+9411645+9426254(Top 92%)11100(Top 91%)11100(Top 612%)
20M20.00 mi1.36 mi27337+6711608+3711608+3726336(Top 93%)11188(Top 91%)11188(Top 617%)
21M21.00 mi1.00 mi27293+4411586+2211586+2225746(Top 91%)10924(Top 89%)10924(Top 603%)
35K21.75 mi0.75 mi27247+4611567+1911567+1925959(Top 91%)11085(Top 91%)11085(Top 611%)
23M23.00 mi1.25 mi27171+7611528+3911528+3925344(Top 89%)10776(Top 88%)10776(Top 594%)
24M24.00 mi1.00 mi27139+3211517+1111517+1125764(Top 91%)11012(Top 90%)11012(Top 607%)
40K24.85 mi0.85 mi27089+5011492+2511492+2525066(Top 88%)10703(Top 88%)10703(Top 590%)
25.2M25.20 mi0.35 mi27073+1611488+411488+425513(Top 90%)10960(Top 90%)10960(Top 605%)
Finish26.22 mi1.02 mi27071+211492-411492-426568(Top 94%)11421(Top 93%)11421(Top 630%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 97%
×21story building
+97ft-345ft

Overall

27630

Females

11766

F45-49

11766

5K→10K

3.1 - 6.2 mi

Top 98%
×5story building
+79ft-138ft

Overall

27905

Females

11911

F45-49

11911

10K→15K

6.2 - 9.3 mi

Top 97%
×3story building
+67ft-78ft

Overall

27630

Females

11766

F45-49

11766

15K→20K

9.3 - 12.4 mi

Top 96%
×5story building
+106ft-86ft

Overall

27305

Females

11583

F45-49

11583

20K→Half

12.4 - 13.1 mi

Top 94%
×2story building
+19ft-37ft

Overall

26826

Females

11316

F45-49

11316

Half→25K

13.1 - 15.5 mi

Top 95%
×4story building
+66ft-88ft

Overall

26843

Females

11343

F45-49

11343

25K→30K

15.5 - 18.6 mi

Top 92%
×9story building
+181ft-148ft

Overall

26254

Females

11100

F45-49

11100

30K→20M

18.6 - 20.0 mi

Top 93%
×5story building
+64ft-50ft

Overall

26336

Females

11188

F45-49

11188

20M→21M

20.0 - 21.0 mi

Top 91%
×8story building
+106ft-24ft

Overall

25746

Females

10924

F45-49

10924

21M→35K

21.0 - 21.8 mi

Top 91%
×7story building
+17ft-86ft

Overall

25959

Females

11085

F45-49

11085

35K→23M

21.8 - 23.0 mi

Top 89%
×5story building
+23ft-63ft

Overall

25344

Females

10776

F45-49

10776

23M→24M

23.0 - 24.0 mi

Top 91%
×6story building
+12ft-82ft

Overall

25764

Females

11012

F45-49

11012

24M→40K

24.0 - 24.9 mi

Top 88%
×1story
+6ft-20ft

Overall

25066

Females

10703

F45-49

10703

40K→25.2M

24.9 - 25.2 mi

Top 90%
×1story
+13ft-16ft

Overall

25513

Females

10960

F45-49

10960

25.2M→Finish

25.2 - 26.2 mi

Top 94%
×2story building
+22ft-21ft

Overall

26568

Females

11421

F45-49

11421

Passing Analysis

Category:
Athletes Passed
1172
Passed By
100
Net Change
+1072
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#28143
5K → 10K11022+88#28143#28055
10K → 15K13118+113#28055#27942
15K → 20K1467+139#27942#27803
20K → Half401+39#27803#27764
Half → 25K1614+157#27764#27607
25K → 30K2074+203#27607#27404
30K → 20M703+67#27404#27337
20M → 21M484+44#27337#27293
21M → 35K504+46#27293#27247
35K → 23M815+76#27247#27171
23M → 24M419+32#27171#27139
24M → 40K500+50#27139#27089
40K → 25.2M193+16#27089#27073
25.2M → Finish1816+2#27073#27071
TOTALS1172100+1072
📊

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