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BOSTON MARATHON 2025

Jena Postma

Bib: 16359•F

NY

0:00
0:00
/ mi
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Overall
#0 / 28404
Gender (Female)
#0 / 12228
Division (F18-39)
#0 / 5469
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
9:02/mi
28:03
↑ 97↓ 3451.5%
10K· 6.21 mi
8:37/mi
54:49
↑ 79↓ 1380.4%
15K· 9.32 mi
8:29/mi
1:21:10
↑ 67↓ 78
20K· 12.43 mi
8:46/mi
1:48:25
↑ 106↓ 860.1%
Half· 13.11 mi
8:29/mi
1:54:12
↑ 19↓ 370.5%
25K· 15.53 mi
8:49/mi
2:15:34
↑ 66↓ 880.2%
30K· 18.64 mi
9:59/mi
2:46:36
↑ 181↓ 1480.2%
20M
10:58/mi
3:01:30
↑ 64↓ 500.2%
21M
11:15/mi
3:12:45
↑ 106↓ 241.6%
35K· 21.75 mi
10:23/mi
3:20:31
↑ 17↓ 861.7%
23M
9:35/mi
3:32:31
↑ 23↓ 630.6%
24M
9:34/mi
3:42:05
↓ 821.3%
40K· 24.85 mi
9:28/mi
3:50:11
↓ 200.3%
25.2M
8:56/mi
3:53:16
↑ 13↓ 160.2%
Finish· 26.22 mi
7:22/mi
4:00:46
↑ 22↓ 21

The Course

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Half Splits

1st Half· via HalfFaster
Distance13.11 mi
Time1:54:12
Pace8:43 /mi
2nd Half
Distance13.11 mi
Time2:06:34
Pace9:39 /mi
📊Positive Split: 10.8% slower second half

Checkpoint Splits

CheckpointDistanceTime of DayTimeAvg PaceSegment TimeSegment PaceDiff
5K
3.11 mi11:02:0428:039:0228:03
9:02
-
10K
6.21 mi11:28:5054:498:4926:46
8:37
-0:25
15K
9.32 mi11:55:111:21:108:4326:21
8:29
-0:08
20K
12.43 mi12:22:261:48:258:4327:15
8:46
+0:17
Half
13.11 mi12:28:131:54:128:435:47
8:29
-0:17
25K
15.53 mi12:49:352:15:348:4421:22
8:49
+0:20
30K
18.64 mi13:20:372:46:368:5631:02
9:59
+1:10
20M
20.00 mi13:35:313:01:309:0414:54
10:58
+0:59
21M
21.00 mi13:46:463:12:459:1111:15
11:15
+0:17
35K
21.75 mi13:54:323:20:319:137:46
10:23
-0:52
23M
23.00 mi14:06:323:32:319:1412:00
9:35
-0:48
24M
24.00 mi14:16:063:42:059:159:34
9:34
-0:01
40K
24.85 mi14:24:123:50:119:168:06
9:28
-0:06
25.2M
25.20 mi14:27:173:53:169:153:05
8:56
-0:32
Finish
26.22 mi14:34:474:00:469:117:30
7:22
-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

7:22 /mi

Average Pace

9:11 /mi

Slowest Pace

11:15 /mi

Loading chart...
Fastest
Middle
Slowest
Average

📊Segments

Segment Time Comparison

Time at Faster Pace

39:38

16% of race

Time at Steady Pace

1:54:37

48% of race

Time at Slower Pace

1:26:31

36% of race

Average Pace: 9:11 /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 mi11:02:0428:039:0228:03
9:02
#22546
10K
6.21 mi11:28:5054:498:4926:46
8:37
#21565
15K
9.32 mi11:55:111:21:108:4326:21
8:29
#20800
20K
12.43 mi12:22:261:48:258:4327:15
8:46
#20552
Half
13.11 mi12:28:131:54:128:435:47
8:29
#20474
25K
15.53 mi12:49:352:15:348:4421:22
8:49
#20226
30K
18.64 mi13:20:372:46:368:5631:02
9:59
#20562
20M
20.00 mi13:35:313:01:309:0414:54
10:58
#20914
21M
21.00 mi13:46:463:12:459:1111:15
11:15
#21014
35K
21.75 mi13:54:323:20:319:137:46
10:23
#21121
23M
23.00 mi14:06:323:32:319:1412:00
9:35
#20985
24M
24.00 mi14:16:063:42:059:159:34
9:34
#20943
40K
24.85 mi14:24:123:50:119:168:06
9:28
#20860
25.2M
25.20 mi14:27:173:53:169:153:05
8:56
#20748
Finish
26.22 mi14:34:474:00:469:117:30
7:22
#20469
Faster pace
Steady pace
Slower pace

Checkpoint and Segment Rankings

CheckpointDistanceSeg. DistOverallFemalesF18-39Seg. OverallSeg. FemalesSeg. F18-39
5K3.11 mi3.11 mi225468931893119219(Top 68%)7017(Top 57%)7017(Top 128%)
10K6.21 mi3.10 mi21565+9818374+5578374+55720443(Top 72%)7712(Top 63%)7712(Top 141%)
15K9.32 mi3.11 mi20800+7657923+4517923+45119219(Top 68%)7017(Top 57%)7017(Top 128%)
20K12.43 mi3.11 mi20552+2487790+1337790+13319807(Top 70%)7378(Top 60%)7378(Top 135%)
Half13.11 mi0.68 mi20474+787750+407750+4019129(Top 67%)6988(Top 57%)6988(Top 128%)
25K15.53 mi2.42 mi20226+2487620+1307620+13019008(Top 67%)6985(Top 57%)6985(Top 128%)
30K18.64 mi3.11 mi20562-3367847-2277847-22721575(Top 76%)8542(Top 70%)8542(Top 156%)
20M20.00 mi1.36 mi20914-3528051-2048051-20423517(Top 83%)9691(Top 79%)9691(Top 177%)
21M21.00 mi1.00 mi21014-1008128-778128-7722043(Top 78%)8989(Top 74%)8989(Top 164%)
35K21.75 mi0.75 mi21121-1078202-748202-7422907(Top 81%)9501(Top 78%)9501(Top 174%)
23M23.00 mi1.25 mi20985+1368154+488154+4819044(Top 67%)7538(Top 62%)7538(Top 138%)
24M24.00 mi1.00 mi20943+428145+98145+919874(Top 70%)8018(Top 66%)8018(Top 147%)
40K24.85 mi0.85 mi20860+838121+248121+2418635(Top 66%)7451(Top 61%)7451(Top 136%)
25.2M25.20 mi0.35 mi20748+1128070+518070+5111594(Top 41%)3831(Top 31%)3831(Top 70%)
Finish26.22 mi1.02 mi20469+2797927+1437927+1438262(Top 29%)2198(Top 18%)2198(Top 40%)

Segment Performance Analysis

10K→15K

0.0 - 3.1 mi

Top 68%
×21story building
+97ft-345ft

Overall

19219

Females

7017

F18-39

7017

5K→10K

3.1 - 6.2 mi

Top 72%
×5story building
+79ft-138ft

Overall

20443

Females

7712

F18-39

7712

10K→15K

6.2 - 9.3 mi

Top 68%
×3story building
+67ft-78ft

Overall

19219

Females

7017

F18-39

7017

15K→20K

9.3 - 12.4 mi

Top 70%
×5story building
+106ft-86ft

Overall

19807

Females

7378

F18-39

7378

20K→Half

12.4 - 13.1 mi

Top 67%
×2story building
+19ft-37ft

Overall

19129

Females

6988

F18-39

6988

Half→25K

13.1 - 15.5 mi

Top 67%
×4story building
+66ft-88ft

Overall

19008

Females

6985

F18-39

6985

25K→30K

15.5 - 18.6 mi

Top 76%
×9story building
+181ft-148ft

Overall

21575

Females

8542

F18-39

8542

30K→20M

18.6 - 20.0 mi

Top 83%
×5story building
+64ft-50ft

Overall

23517

Females

9691

F18-39

9691

20M→21M

20.0 - 21.0 mi

Top 78%
×8story building
+106ft-24ft

Overall

22043

Females

8989

F18-39

8989

21M→35K

21.0 - 21.8 mi

Top 81%
×7story building
+17ft-86ft

Overall

22907

Females

9501

F18-39

9501

35K→23M

21.8 - 23.0 mi

Top 67%
×5story building
+23ft-63ft

Overall

19044

Females

7538

F18-39

7538

23M→24M

23.0 - 24.0 mi

Top 70%
×6story building
+12ft-82ft

Overall

19874

Females

8018

F18-39

8018

24M→40K

24.0 - 24.9 mi

Top 66%
×1story
+6ft-20ft

Overall

18635

Females

7451

F18-39

7451

40K→25.2M

24.9 - 25.2 mi

Top 41%
×1story
+13ft-16ft

Overall

11594

Females

3831

F18-39

3831

25.2M→Finish

25.2 - 26.2 mi

Top 29%
×2story building
+22ft-21ft

Overall

8262

Females

2198

F18-39

2198

Passing Analysis

Category:
Athletes Passed
3468
Passed By
1391
Net Change
+2077
SegmentAthletes PassedPassed ByNet ChangeStart RankEnd Rank
Start → 5K----#22546
5K → 10K101231+981#22546#21565
10K → 15K77611+765#21565#20800
15K → 20K31264+248#20800#20552
20K → Half8810+78#20552#20474
Half → 25K29143+248#20474#20226
25K → 30K131467-336#20226#20562
30K → 20M34386-352#20562#20914
20M → 21M58158-100#20914#21014
21M → 35K37144-107#21014#21121
35K → 23M15822+136#21121#20985
23M → 24M7937+42#20985#20943
24M → 40K10118+83#20943#20860
40K → 25.2M1120+112#20860#20748
25.2M → Finish2790+279#20748#20469
TOTALS34681391+2077
📊

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